ive had a atrix for awhile and i got my gingerbread update like a month ago. its way better bro. get it. it shits on froyo imo. oh and youll love the new way the screen turns off when you lock the phone haha ;]
It'd probably be more debatable if it weren't an official update. I've flashed my original Droid a billion times with custom ROMs and many failed or had issues. I've reinstalled stuff so many times, it's like living in boxes from constantly moving. Being an official update though, I'd be shocked if anything were wiped out.