Re: Balanced review of an Apple product !
I've had mine about a week, and its battery life is very similar to that of previous iPads. i.e. pretty good.
I have never, under any circumstances, seen my iPad's battery reserves drift below 30%, and that's been after a lot of use, without charging up the night before.
Unless you are insanely joined to your iPad for 9 hours or more in the day, battery life is not an issue.
Assuming no photos or video or music, 16GB is probably quite adequate for general use. As a tool for communication with a distant relative, plenty enough.