[alderz]

I guess that for some people, and particularly in small reviews, it is enough with the list of files and inline comments.

I would like to have a tree view where I can see all the files at a glance, and, more importantly, switch back a forth between them. I find it hard to follow the code in Github's UX.

Also, Fisheye/Crucible gives you more flexibility to edit the review, by allowing you to remove files, and add or remove commits. Github PRs are based on branches, while Fisheye/Crucible code reviews are based on commits; it is an entire paradigm shift that gives the user more control. For example, I can create two separate reviews from the same branch on Crucible; that's impossible on Github.