What do you like best about the product?

It is flexible, modular, reduced maintenance, increased accuracy. You can develop common processes (graphs or subgraphs) to be called by other graphs. You can package them into jobs. You can create user facing data apps that provide a simple user interface/page where the users can attach their file(s) , run the process, and receive their output.
You can create/maintain common layouts/definitions in one place and use them across all processes.

What do you dislike about the product?

Nothing comes to mind. You might think run time parameters or global variables, but once you understand the context/usage of Clover sandbox parameters, graph parameters, dictionary entries, and parameter passing between graphs/subgraphs, you can do almost anything.

What problems is the product solving and how is that benefiting you?

We are a consulting firm that helps government, commercial, higher education, and healthcare organizations move to cloud applications. We use it primarily for data conversion and data loading to cloud (SAAS) applications.