I've had one for a while now, and getting a new console so early is silly, but I had several of my own reasons to go ahead and get one.
I'd like to post my impressions on it. I actually didn't know a lot about the Wii U going in; probably just about as much as the general public knew about it. I didn't keep up on new features or read reviews about it or anything.
I got the black one, the one with a 32GB HD rather than the white 8GB HD, which is good considering it turns out the OS alone takes up 7GB. It seems most people have heard about this already, but the initial system update takes a long time. A really long time. I thought people were exaggerating when I heard about it and it would take just like 5 minutes, which seems like a long time when you're waiting to play a new game, especially on a new console, but no, it took about 20 minutes. And then when I went to try a game it wanted to update again! So the System Update from Nintendo doesn't include whatever update you need to play a launch title, for whatever stupid reason. Annoying, but whatever, it's an update, it's not like it happens every time you turn the console on.
I'd seen the gamepad in stores but I didn't realize just how big it was until I actually had it at home. It's a lot bigger than I imagined (yeah) but it's also very light. It's not uncomfortable to hold or anything and it works pretty well. A minor complaint, but I don't like how the Wii U forces you to use the gamepad instead of a Wiimote so often. Like when creating a Mii, for example, you have to use the gamepad. It's inconvenient having to switch back and forth between two controllers, and it makes me feel like I'm playing on a DS instead of on my big TV. I feel weird complaining about it since I generally hate motion controls and the gamepad is more traditional in that regard, but it's also not right. You can use the Wiimote in the Wii U menu, but doing generally anything else causes the console to put up on the screen "Please look at the GamePad to continue".
Load times. My God, the load times. I don't have any idea why, because there is no reason for an OS being read from flash memory and not a disc to load menus so slow, but it does. It's SO FUCKING SLOW. Want to load System Settings? 15 seconds. Done? 15 seconds to go back to the Wii U Menu. Want to play a game? Tough shit, you have to wait 25 seconds first. Even worse is if you want to play a Wii game. The Wii U is backwards compatible with Wii games, but to do so you have to load the original Wii menu, which takes around 30 seconds, about how long it takes to start the game. Load times during the Wii games seem to go slower than they did on the Wii, but I've only tried 2 so far so I don't know for sure.
You can have multiple profiles (yay) but it doesn't matter since only the first player can sign in (boo).
Possibly my imagination, but the Wiimotes generally seem more responsive and accurate.
Of course, this can all be overlooked as long as there are enough good games. I have 4 games currently, and I've only played 3. Only 2 of them I've played enough to actually be able to give a valid opinion. The Wii U didn't really launch many strong games, and even less so if you own those games on other consoles. I haven't been paying attention to what games are on the way or anything, so I don't know what's in store, but I do feel like there's a lot of potential here.
There really just isn't a whole lot to say yet. For me, most of the complaints are pretty minor, but most of the good things are pretty minor too. Mostly it feels like Wii 1.5 instead of Wii 2.0, which I think is the problem. But the games define a console, so who knows?
tl;dr:
Pros- Gamepad is kinda cool
- High definition (it's only several years late)
- One ID to play with friends online
- You gots da Marios
- High potential for creative new games
Cons- REALLY FUCKING LONG LOAD TIMES OH MY GOD
- Initial setup takes a long time
- If you decide to keep your Wii, you now have 2 sensor bars
- Not a lot of good games yet
- Doesn't play DVDs, but like me, you probably have at least one other device that does that anyway