Dragonborn's storyline, though short, is a great deal of fun. But no, it's not all good.
At this point, I’d probably be more surprised if Bethesda's game content was perfectly playable at release, than if it weren’t. I wish I cared more, I really do, but I don’t. The fact is, even with the bugs, Dragonborn is still a wonderful addition to a game I’ve already sunk over 300 hours into. It’s tragic to say, because I don’t want to give developers the false impression that releasing content that frustrates players with at-times unplayable bugs is perfectly okay. It isn’t. But dammit, Skyrim is fun.