well i own a raptor and it has a whole lot of nut but the problems ive found is in trying to keep it light it comes stock with parts that often fail due to the sheer power of it. fly wheels are a biggie and can be 400+ to fix.
the hondas are total beasts, but the new 750 is just that, new. in macines that havnt been around a long time there are often kinks to work out....ive never been on one so i cant give you much info on that.