Funny, I've noticed the 7+ battery life to be no better and perhaps slightly worse than the regular 7. Maximum brightness also seems slightly less, but I went from a clear glass to a matte glass cover so it might be the impression that the matte coating gives.
I'm not disappointed since I turn off a lot of unwanted features and get 10-12 hours use typically, which is enough for a day's use, but I expected more. I once saw 15 hours of Safari browsing on the 7 before I sold it.
Screen is a lot better for TV, movies and the web but size is more difficult and I can't really use it single-handedly with a case.
I'm hoping the 8/Anniversary will have a 5.5" screen in a 5.0" form-factor, but I'm also keen for it to change to a wider ratio. This way it can stay slim for ease of single-handed use but get more vertical screen real estate. 18/9 could be good?