So far I have extremely mixed feelings regarding the Wii U.
The OS is painfully slow.
UI design is all over the fucking place, nothing is consistent. Some things I can do with the buttons, some with the touchscreen, some with both, it's really silly. Certain apps feel like they were designed by different teams with different goals, I will forgive Nintendo Land for having some games played with the gamepad, some not so much, yadda, yadda, because they're a bunch of minigames but for the OS it's inexplicable that this exists. The system menu has to be browsed by the gamepad, you can not use a pro controller at all, you're just stuck looking at the instructions on the TV and no button will change that forcing you to move to the gamepad. Moronic. However, if you're just in the plain home OS screen you can switch between what's shown on the TV with the x or y(forget which) button(which is smart and how it should be in the settings menu as well). Same thing with the Miiverse app, some of it you can navigate with the pro controller but then you get stuck where you have to use the touch screen and the only thing you can do is back at and again use the gamepad. Idiotic. At least the eShop flat out says it can only be used with the gamepad, which is still stupid because it's showing that crap on the screen and you can use the gamepad buttons to navigate the shop just fine which influences the display on the television.
But the Pro controller so far actually seems to be the better controller for actually navigating WaraWara Plaza or whatever as you can move the pointer around and pick out specific miis with ease AS WELL AS move the screen where you want which is much harder to influence with the gamepad, although yes on the gamepad if you do manage to get to the section of the screen you want you can just tap on the mii you want to view which is easier than using the pro controller.
The Hulu Plus app is particularly moronic in design. It more or less requires the TV to be on with its shit interface but flat out doesn't work with the pro controller.
So sort of my main gripe is the super over-reliance on the gamepad, I want to use the Pro controller but I'm constantly forced away from that option at every turn by Nintendo.
I would be less annoyed at this aspect if two things were true:
First thing is that if the gamepad did not have terrible battery life. the gamepad's a neat idea for sure and I do think it's comfortable for what it is, though not as comfortable as a true controller for classic style games, but if I actually used the system with the gamepad it runs out of juice on me every time.
Second thing is if the TV really was not required. I know that you could deflect responsibility from Nintendo by claiming it's not their place to tell other developers like Hulu how to design their software but as the platform owner it actually is their place.
As it is now the Wii U is seriously lacking in a focus making it a rather poor choice for everything it does. It's rather frustrating to treat it as a flat out standard game console as the battery life of the gamepad is terrible, not to mention that for many games it's not an ideal solution and while the Pro Controller is a decent controller, the swapped buttons and analong stick on the right side, lack of a mic jack and it's inability to navigate some of the most fundamental sections of the OS also make it a poor choice.
On the flip side I can't really treat it as a tablet like I do my Kindle Fire either as the range is limited by the Wii U, the battery life discourages heavy use and sometimes for no reason you have to use the TV.
So I'm left here thinking, "ok, so if the gamepad really is the Wii U's thing why the fuck did they not really focus on that?" Why does it not have better battery life? Why isn't everything able to run without the TV on?
As far as the Wii U's gimmick goes it's a failure, I can't leave the gamepad lying by my couch and use it sporadically like I do a tablet or even any other console because of the battery life. The Pro Controller has a decent battery and I'm happy with it hardware wise but that doesn't work with everything forcing me to get up and get the gamepad from it's dock and use that if I want to do something simple like add a friend or something. It's a frustrating system to use for anything other than playing the one game I own on it, Warriors: Orochi 3(well aside from Nintendo Land but that's boring solo).
That said, I don't hate it as a game machine, Warriors: Orochi is actually fun, sure, it's got some slowdown but it and Nintendoland were fun games and I look forward to what the system can do but I'm just baffled by what I feel is a total disregard to the user experience surrounding the console. If Nintendo made the whole OS usable without the gamepad I'd like it a whole lot more as a game system but for me to like it as originally pitched they gotta increase the battery life of the gamepad(which would piss me off as well though since I'd likely have to buy another pad or battery) and make everything also be runable just from the Gamepad, this mix and match shit is ridiculous. The slow UI is ridiculous.
In short I kind of think it's the worst "console" I've ever owned. Which is a weird thing to say and not entirely accurate but not wrong, lol. As a dedicated game machine it's more annoying to use than any other system I have ever owned. I guess this is a side effect of the evolution of console, everything else was plug in and play and now I have to have the pad always charging, wii remotes nearby, the Pro controller nearby and in a single gaming session I'll likey be forced to use at least 2 of those three! I find that hilarious. It's also the worst tablet or handheld I've ever owned. Crap battery life, sometimes requires a television and is slower than any tablet I have used. But, if the game does run on the tablet screen it runs nicely. But it's also not true because it is better than the Wii and I have no doubt it'll have games that look better than a Wii offering so somehow it's the worst console I've owned and not at the same time.
Like I said, extremely mixed feelings on the thing.
This is ignoring other things that kinda grate at me like the slowest download speeds on the planet(Orochi took a day to download and the first firmware took over an hour to download), super long install times(Orochi took over an hour), the incredibly paltry storage space of the Deluxe, nonexistent usability options like a much needed opposite of the "power down after download is completed" button so that a user could set a normal power off after x amount of hours option, to you know, save the planet, but not have it shut off in the middle of a download which will take 17 hours or so to download. The latter thing is so silly, once they knew what their file sizes would be and they knew they weren't going to be providing super fast download speeds(which I don't mind, the service is free) why the fuck did they not have that as an option in the download list screen? So stupid, so either you set your console to something silly like power down after 24 hours or some crazy long time where the concept of even having an auto-off feature becomes stupid, you check on it every few hours to keep it shutting off which is a waste of time or you just let it shut off and download the file in several chunks as you use the system throughout the week. Just another example of the lack of thought in regards to the user experience by Nintendo.
Anyways, still waiting for Bayonetta 2 and Zelda!
Edit: Also, in relation to the above I think they really need to focus on improving the pad. Without the pad it really stands no chance against the next Xbox and Playstation but at the moment the gamepad's also it's biggest obstacle.