I'm not a video review type of person, but from my experience with it for 2 days, I can tell you, out of the 5-10 Android phones I've ever owned, it is the best on battery.
I bought it yesterday morning, used it for a good hour, then realized I should probably charge it, since I was going to the Batman premier really early. Took about an hour to fully charge.
From 9:30pm to midnight, I sat in the theater browsing the web, playing Words With Friends, playing Sonic CD, downloaded GTA 3 as well as all my other apps. Got home after the movie, played with it for another couple hours. Didn't check the battery percentage, but it was still green, and more than half full. Charged it and went to bed.
Today, went out to eat with the girlfriend, then took a 1-hour train(used wifi), then buses for about another 2 hours(in those 3-4 hours, I played on the phone the entire time), and when I got home, around 7, it had just hit the yellow mark.
I am very amazed at this battery life. Honestly the only thing I dislike about the phone is the keyboard. For some reason, it's a lot harder to get words correct than on my Optimus Elite, even though the Elite was actually .2" smaller. I'll try downloading a new keyboard.