Today I had to fix a piece of custom code inside of Redmine. I have very little experience with Ruby on Rails but I was able to get the app up and running with a debugger attached within 15 minutes.
I downloaded the latest version of RubyMine 2.5 EAP, installed it, pointed it to the folder with the app, selected production configuration and hit Debug. RubyMine analysed my Ruby setup and popped up a window with a notification that I’m missing some gems and the IDE can download and install them for me. I hit Ok and 5 minutes later I was debugging the app. Ruby on Rails experience on Windows is far from being perfect but RubyMine is simply awesome.