I like it a lot. I have no issues with comfort. In fact, I appreciate how spaced my hands are from each other, after spending so much time playing handhelds. The only people who complain about weight or bulk are people who haven't actually held one. I consider the features it has in any game a nice plus, and if I don't want to use them, I just ignore the screen. I own Zombi U and Rayman, but haven't really played them yet - just the demos. But I know just from those demos that they make excellent use of the second screen.
Off-TV play is a bigger deal for me than I ever would have realized. My gf and I don't have to argue over the living room TV nearly as often, and the Wii U can act as a pseudo-portable console. When I don't feel like play a 3DS or GBA game, I can take it with me to work on weekends and play on the GamePad. When it's bedtime, but I still feel like playing a game or browsing the Web, I can take the controller to bed and plug in headphones.
OK, I love the GamePad, now that I think about it. I see no reason to purchase a tablet or a Pro Controller.







