I would say it's pretty easy to add and configure features to Netgate pfSense. However, if you add features that Netgate does not officially support, you can run into issues with your support contracts. It's easy to add features, but it's extremely difficult to support something that is not an official Netgate plug-in.
We saw the benefits of Netgate pfSense pretty immediately after deploying it. We have been scaling, though. As we got to a very large deployment across different sites, we started to see additional problems, but then we also saw additional value added. Initially, there's a lot of value, which increases over time, but eventually, you hit a wall where it's just not that valuable.
On the surface, it looks like pfSense Plus provides visibility that enables data-driven decisions. Unfortunately, after many back-and-forths with support, they say that it looks like the firewall has done something, but there's nothing in the log. There's no data to support their theories. On the surface, it looks like it should, but we found in practice that it was missing a lot of data that would help us make decisions that we needed to make.
The solution's total cost of ownership is good for what it is. I don't think I would ever use it in an enterprise environment anymore. As a value proposition, it's really good for a small business application or a company with multiple sites that you need to be able to interconnect.
You can set up an entire ecosystem for $ 5,000 to $ 6,000 with top-of-the-line hardware from Netgate. Unfortunately, with our user account, throughput, and bandwidth, we've just outgrown it and can't use it anymore.
We've bought appliances for Netgate pfSense's deployment, and we've also deployed the solution on separate machines. Most recently, we used the appliances.
Technically, we never got Netgate pfSense to a good solid state. For the four to six months we had it in production, it was constantly down and needed at least 20 hours of maintenance a week.
Overall, I rate the solution a six out of ten.