I wasn't underwhelmed or impressed in particular. I just had no real feelings about it. Mind you, I didn't care all that much for the PS3 either and we actually have one. The lines are starting to blur together with the Xbox and I'm sure that trend will continue.
I feel like this next gen will be a lot more casual gamer-friendly, which I don't mind at all. I don't see why there's so much resistance to it.