I've had it six days now, and I'm still pretty impressed, even with the iTunes crap, which I use another program to bypass. I can upload eBooks, movies, tv shows, songs, etc from all of the desktops/laptops on my network to it instead of having to plug it in. It's light, and the Retina screen is pretty good. Netflix picks up everything in HD at max resolution pretty much on it. Power consumption wise, it's easily the best of any small device I've had, from Blackberry, Samsung, other Apple, and other eReaders. I've used it a lot, and I mean a lot, and still haven't charged it just to see how much it'll drop, and it's still over 50 percent - I had read about "week long" power this and that, and always just dismiss that as BS, as I've never had a device actually stack up in that department, but so far this one is.
Dislike - well, having to convert any movie/tv program that you have into MP4 or some other Apple approved format is a giant PITA. Again, having to depend on an iTunes workaround in order to "sync", a fancy Apple word for upload, anything and everything. Cost as well, it's the most expensive small gadget I've bought. It also never came with any kind of case, and none of the stores had received their Apple magnet screen covers, which are 50$ or 100$ depending which of the two you get. A cheap aftermarket neoprene case is still 30$. Every other tablet/reader I've ever bought came with one, I don't know why Apple cheaps out on this.
Overall I would still buy it again, the clarity of the screen and power efficiency are what I like best, as most of what it's for is reading. Also, the apps just can't be beat IMO, although android is pretty much the same now IMO, and my 2nd and 3rd choices would be just as decent I'm sure.