There are problems that make builds starting with 787 (and maybe before) competely unusable.
Create a new class and R# won't see it (no refactoring, etc.) until you restart VS. It's like R# only parses files on startup. Extremely annoying.
Oh, and PLEASE make documentation installation optional. Are you really updating it in every nightly build? How many people actually use it and need those latest updates? Merging takes a long time, especially if you have to do it twice a day: to install a new version and then rollback to an old (working) version.