Got mine this afternoon, I've been on it pretty much constantly since, here are my early thoughts, bearing in my mind this is my first tablet so I don't really have anything to compare it to:
The design looks good, don't know why everyone is complaining. The back looks better in the flesh than it did in videos/photos. I also really like the material of the back, it's less rubbery than I thought it would be, so it is smooth, but it also gives you grip.
The screen is excellent of course, colours look good, swiping between menus is very responsive. However, when browsing using Chrome, sometimes there is a little lag when clicking on links or scrolling around a webpage. This seems to be a Chrome problem though, as I tried the Dolphin browser which was much more responsive.
As for the screen bleed, yes there is some when the screen is completely black, but it is fairly minimal. 95% of the time you are using it, you will not notice it. To be honest, I don't see the big problem with screen bleed anyway. I have taken 2 photos of the device, both with full brightness and with the light off in my room (it's night time here).
Yes, it does seem quite noticeable in the first photo, but that is partly the fault of my phone camera which really accentuates it, it is much less noticeable when looking at it with the naked eye. As you see in the second photo, it is barely noticeable with a video playing. During typical use, I doubt anyone would have it on full brightness with the screen on almost fully black, while in a dark room. All in all, this is not a problem in my opinion.
The charging speed is absolutely dire, especially if you are using the tablet at the same time, although it should be able to fully charge if you leave it overnight. The charging dock is going to be very popular.
The speakers are pretty good, with the placement being the main thing. With it being at the front, the sound comes at you, and having your thumbs over them doesn't block the sound, unless you completely cover both sides with your hands.
I didn't get any WiFi drop-outs that I have seen a few reports of.
Overall, I am very pleased with this, and would definitely recommend it.
Also, if anyone wants anything checking or trying out, I'd be happy to do that.