I have problems getting Rawr to load on my work computer, but Mr. Robot booted up just fine. I'm also liking the ease of adjusting stat weights that Mr. Robot

And I adore the easily-printable list of drop locations; makes it simple to see at a glance which raid boss I need to concentrate on next, which nights I can safely skip, which heroics I should queue for on my alts.

I used rawr all through wrath and liked it a lot. But rawr is very buggy right now and isn't even working for some specs. Mr. Robot also works much faster in the browser. If they ever get rawr working as well as it did back in wrath I might go back to it, but for now Robot's easier to deal with.

The thing with Rawr is that at the moment, half of the specs aren't functional with it. If you go to Rawr's page right now (11am EST) 11 of the supported Specs for Rawr are inoperable or only partially operable. The remaining 10 are either mostly or fully operable. So if you're one of those 11 sets, you're up a dirty brown creek without a paddle.

My advice would be that if you can still use Rawr, use it AND Ask Mr. Robot to get a better picture/data pool. If you can't Ask Mr. Robot is a decent replacement for Rawr.

"which nights I can safely skip"

Wow.