It being a Rails app isn't a problem. A whole bunch of noise and features that have nothing to do with collaboration or managing the versioning of code is the problem.
I like rails myself, not knocking that. Prob well past due for a SPA like experience though. So much of the UI is so antiquated. The fact that very basic things in a PR are hidden beneath a disclosure menu when there is more than enough room to put it in-line without the menu is frustrating. Like simply editing the description of a PR requires 2 clicks when it could easily be 1. Everthing feels bolted-on or shoehorned in. Like marking a PR as a draft ... it took me forever to find that the first time.
