I just have to say that since installing the "stable" build 804, my Intellisense has gone completely down the drain.  It doesn’t pop up on its own anymore, and I’ve probably hit Ctrl-Space more times in the last week than the previous year.

Other than that, the experience has been great.  I had one minor argument over an "unused" field that it wanted to remove.  Unfortunately the act of retrieving that value was integral to the unit test where it lived.  THAT one took a little while to figure out, since the failure it caused didn’t have to do with that value in any way.  Lesson learned… don’t always take R#’s word for what is or isn’t needed inside a RhinoMock record block.