Had my Wii-U a few hours now and I just wanted to drop in my initial thoughts.
1) I like the controller but kinda wished the screen was a touch bigger. Not overly heavy either, which surprised me.
2) The overall speed of the system is very lacking. I did hear an update was planned to try and sort this but getting in and out of menus is aggravating.
3) After the lengthy update, the first view of the HUD is minimal and lacking features. Did they not think to pre-install some of the extra stuff like YouTube etc? I heard iPlayer was not there either, which is a shame. Plus the TVii stuff does not seem to work in the UK. (Might be setting it up wrong)
3) Nintendoland is a very typical Nintendo game but lacks their usual charm. Played a few of the attractions myself and not a glimmer of excitement. Just really underwhelming on the face of it. Family around me asked why so many cables and why the waggling was replaced with sitting down again. Played some MP stuff and its pretty fun but super reduced. After 20 mins or so, everyone has moved off. Not what I wanted.
4) Monster Hunter Tri-U is awesome and the most redeeming part of my Wii-U purchase.
Not sure what is on my list now to buy but only Zombie U tickles my fancy at this point. Wil keep an eye out for what else is coming up.