We're a security tech company. As such we recognize the need for a defence-in-depth approach to mitigating the risks when writing code. When it comes to static analysis tools for the Rails platform, Brakeman Pro is our tool of choice.
We love it. I have, in fact, evangelized it to some of our engineering teams that use ROR. I am not sure if they have decided to step up to commercial, but I strongly recommended it. It is a great tool and it saves me a huge amount of time and effort.
We're a community nonprofit building systems out from scratch, and it's mission critical that our clients trust us to safeguard their information. Brakeman Pro has become an absolutely essential part of our development process in making good on our promise to clients.