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CircleCI - CI/CD

CircleCI | 1

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External reviews

482 reviews
from G2

External reviews are not included in the AWS star rating for the product.


    Information Technology and Services

Great for small teams, still trying to scale for big ones!

  • February 27, 2017
  • Review verified by G2

What do you like best about the product?
Configuring is easy and fast. You'll be able to have some flexibility right from the start.
What do you dislike about the product?
It doesn't scale well when you're running lots of builds or have lots of moving parts. Builds sometimes can take more than 40 minutes depending on how busy the tree is.
What problems is the product solving and how is that benefiting you?
Having circleci around to run our tests and making sure everything is sane is helpful.


    Renewables & Environment

Easy to use

  • February 24, 2017
  • Review provided by G2

What do you like best about the product?
Ease of setup and use. I like drilling down to the branch level and seeing the history of build successes/failures for that branch.
What do you dislike about the product?
I've had issues with the dashboard UI being sluggish, using lots of resources in Firefox 51.0.1 and sometimes the UI doesn't stop loading.
What problems is the product solving and how is that benefiting you?
Continuous integration and making sure all tests pass before a deploy.


    Information Technology and Services

Works great for small sized team of up to 25 engineers

  • February 21, 2017
  • Review verified by G2

What do you like best about the product?
Basically the easiest thing to get started on, aside from Travis.
The iOS testing ability is great too.
Pricing is clear, and dynamic, you can change containers up and down every hour.
Performance is good, if you know how to parallelize and script things.
Artifact retention is great.
Awesome github integration.
What do you dislike about the product?
Had some real downtimes over the last 16 months, pretty disappointed when the dev team got stuck.
Random flakiness with the container dying for no reason, had to manually rebuild.
Paralleilization infrastructure is not great compared to TravisCI, it locks containers into stages and doesn't work like a fluid work queue.
Lack of matrix build support means it can't support large scale projects.
What problems is the product solving and how is that benefiting you?
Trying to keep our engineering team productive and shipping code quickly.
Easy to get started and flexible enough.


    Paul H.

Better than the rest

  • February 21, 2017
  • Review verified by G2

What do you like best about the product?
Circle integrates easily into github. Circle also allow us to split up our tests across 16 instances which saves us a lot of time. We don't have to worry about the details of CI, which allows my team to focus more on delivery.
What do you dislike about the product?
There is often instability and its not always clear what the problems are. We often find that versions of things are updated without us knowing. Because we rely so heavily on circleci, when its down or has problems we are completely blocked.
What problems is the product solving and how is that benefiting you?
We used to roll our own CI using Jenkins and we were not happy with having to deal with upgrades and maintenance of the CI. We no longer have to worry about the details.

We use CI for development and delivery. We deploy 20+ times a day (or as needed)... circle is the center of our continuous delivery.


    Yaroslav T.

CircleCI is a huge help to quickly bootstrap any project with Continuous Integration

  • February 21, 2017
  • Review verified by G2

What do you like best about the product?
CircleCI is able to configure build automatically for most popular stacks like Java, Python, Node.js, etc.

At the same time, custom configuration can be added easily any time.
What do you dislike about the product?
Docker support isn't great, but they're trying to fix it with CircleCI 2.0 (currently in beta).

Outages happen (but rarely) and it's really hard to understand why some of the builds are suddenly slow.
What problems is the product solving and how is that benefiting you?
- Iteration speed
- Time to ship a single feature
- Continuous Integration / Delivery


    Rick M.

We love CircleCI

  • February 16, 2017
  • Review verified by G2

What do you like best about the product?
It's easy to use, pretty reliable, pretty customizable
What do you dislike about the product?
We think the dependency caching/cache restoring is slow
What problems is the product solving and how is that benefiting you?
Reliable testing, continuous integration
Recommendations to others considering the product:
Get dockerized


    Guy E.

Good for small to medium sized projects, not ideal for large projects with artifacts to deploy

  • February 16, 2017
  • Review verified by G2

What do you like best about the product?
CircleCI is easy to set-up. It typically automatically can detect the best way to run most types of projects -- both Ruby on Rails and Java.
What do you dislike about the product?
CircleCI makes it difficult to get a comprehensive view of what tests are running vs. what tests have run on each branch or remote. Compared to other tools I've used -- like TeamCity -- It feels like you really have to go searching to understand what's happening with your builds. It's not easy to see in one place what builds are in the queue, what the success vs. failure trend has been over several builds, or even to understand what builds have run longer than others or why. In addition, CircleCI is not as flexible when it comes to dependencies between projects, or using CircleCI to perform automated deployments. Finally, my biggest concern is that CircleCI seems to perform slowly -- it feels very slow and clunky to go from screen to screen.
What problems is the product solving and how is that benefiting you?
We wanted a way to run automated unit tests for all of our projects without having to maintain our own CI servers. CircleCI handles all the infrastructure so we don't have to.
Recommendations to others considering the product:
Consider whether you really need a cloud-based option, or if you would be fine with maintaining your own install. There are other options -- TeamCity, for example -- that are more robust and free for the same size projects that CircleCI is aimed at.

Almost all CI software gets more expensive when you need more build agents, and CircleCI is no exception. Consider the value you're getting when you add more agents on CircleCI vs spending a similar amount of money on other options that are more flexible that have the trade-off of requiring you to maintain your own install.


    Chris S.

Solid product, decent support

  • February 16, 2017
  • Review verified by G2

What do you like best about the product?
CircleCI does what it says, 99% of the time. I mean that in the best way possible. Testing is a tough business with a lot of things prone to go wrong either in the software or the infrastructure supporting the software. While we do occasionally get a false negative, our overall experience with CircleCI is very positive.

We've contacted their support on several occasions, they've been prompt and helpful. Their user forum is also active and useful.
What do you dislike about the product?
The false negatives we get on occasion. But not very often.
What problems is the product solving and how is that benefiting you?
Ensure that our code base do not go sideways with respect to our test suites.


    Internet

Overall positive experience

  • February 16, 2017
  • Review verified by G2

What do you like best about the product?
Ease of use, from github integration and the automatic detection of projects to connecting via ssh to machines.
What do you dislike about the product?
I think this isn't about the service so much, as my ability to use it but I haven't been too successful getting react native to work yet.
What problems is the product solving and how is that benefiting you?
Continuous integration is my primary use case, and I have realized a lot of confidence in the overall process of my development.

I look forward to integrating results more closely with github.


    Entertainment

CircleCI is awesome for start-up

  • February 16, 2017
  • Review verified by G2

What do you like best about the product?
- easy to use and setup
- comprehensive documentation
- no effort on maintenance (unlike self-host solution)
- a good default setup (eg. pre-installed MySQL, PgSQL)
What do you dislike about the product?
- Docker support is limited (not support Docker 1.12 yet)
- Lack of customized setting to the build machine (eg. more RAM, more CPU core, custom build runner image)
What problems is the product solving and how is that benefiting you?
We picked CircleCI when we build our CC pipeline. It turns out the CircleCI has strong integration to GitHub, Slack, etc. And it also allows custom integration and it makes our CD pipeline more completed
Recommendations to others considering the product:
- CircleCI is the best for startup and small team without dedicated role for DevOps