It's a superb phone and I love owning it, however there are a few things that I would have liked:
1. Having the traditional 3 back/home/multi-task layout ON SCREEN. With just the back and home buttons, it means the multi-tasker is a two button press, which is annoying, as I have a habit of mashing the home button a couple of times to go home, and when an app has a settings button, the bottom of the screen is taken up with the 3 button thing. Would be much better if they went the way stock goes and have 3 on screen buttons, with the menu button popping up if needed.
2. Blinkfeed custom feeds. I'd rather choose what websites I want hooked into blinkfeed. Their choices pretty much suck and you can't get any other ones. Plus, I'd like to prioritize Twitter over Facebook and over my news feeds. And have Google + intergration.
3. Zoe's are, as far as I can tell, a pretty useless gimmick. A 3 second video that also takes 20 still shots? Uh ok? Might be better if Zoe's were unlimited until you turned them off. But doing something that can already be done with the video recorder is pretty useless.
4. Get rid of the **** "power saver" thing in the pull down notification bar. Why the hell is that there persistently?
5. I wish you could add other cloud image services outside of Flickr and Facebook. I have a crap load of pictures on Google+ and Dropbox, but it won't let me use those to see in my gallery.