Well, instead of SW 2014 SP4 crashing all of the time (like SP3 did), I get the occasional "an unknown error occurred while accessing" when trying to save my assemblies.  Nothing like being forced to restart from my last save point.  Needless to say, the auto-save is complete crap, and Auto-Recover is near useless, especially since I get "an unknown error occurred while accessing" the auto-recover file...