The only complaint I have, is that its not fast enough for me, but thats because I'm trying to keep up with sport bikes on the highway. Other than that, it is the most fun bike I have ever ridden. as far as actual bike problems, my rear breaks howl, but they ordered new style brake pads which should fix the problem, Warranty covered that.
My girlfriend has had hers since the 696 first came out and she loves it. Only problem was with the instrument cluster once went out. But other than that, which turned out to be a recall that the dealer took care of, it's been great. If it's any indication as to the comfort of the bike, we just did a trip from Miami to West Virginia on our bikes (3,000+ miles total) and she claims she was perfectly fine on it.