I don't always do threads, but when I do, it's because it's worth it.
I had finally the chance to try it this weekend. I must say I'm pretty surprised.
First of all, the console itself is SO SMALL :O It's not even 2x times the size of the Wii. It's disturbing and it's fine at the same time.
Miiverse is a pretty good idea of social community, though I don't really get totally how it works. All I can say is that it plays a big part within the software of the console.
Nintendo Land is actually a very good game with clever ideas. I think I had one of the best social experience tonight. It was really that great, playing with friends. Big ups for Mario Chase and Luigi's Ghost Mansion. The assymetric gameplay is really special in itself - even if the concept is simple, it amazes you everytime you hold the Gamepad in your hands. Beware for fingerprints though... it's getting dirty fast.
Monita is fucking annoying though - it's like Fay and Navi had a baby together! But you can shut her cyborg mouth easily, at least! The game itself is worth much more praise than what critics give to, trust me.
New Super Mario Bros. U really benefits from the HD. I would say that the levels are fewer and shorter, but the level design is better than ever. Even if you saw before a lot of the same mechanics, the way they are presented in the new Mario game makes them feel fresh.
The menus are sleek, and the loading times are not that much of an issue. It takes about 15 secondes for a game to load when you launch it, but you got a picture and some music to entertain you. Very small concern about that.
Even though I know it's not a very big graphical powerhouse, my overall experience with Wii U was great, and I hope more and more people get to understand that its ultimate power resides in community and sharing brand new experiences with friends and family.
P.S. After the first use, the Gamepad's gonna be your best friend for life. It is by far the most clever idea of a remote. One click, I could turn down the volume on my TV or switch to any channel. With the Gamepad, Nintendo controls your SONY BRAVIA!