This is nice, but, it feels like a splashy visual tool that took a lot of dev resources and will only be used significantly by a small user base. I personally feel that they would make a lot more users happy by spending a little on improving their existing code diff interface. Some ideas:
- make the context button "..." for the code diff actually do something
- make the context button "..." for the code diff actually do something
- side-by-side diffs
- syntax highlighting