Ordered my phone last week and got it yesterday. I was worried about battery life after reading all the posts but was pleasantly surprised when I went 15 hours on my first charge.
Got the phone last night, and plugged it in to fully charge (didn't even bump charge it). Took phone off the charger last night around 9:30pm. Was up till about 2:30am setting it up. Turned off sync for items I don't use, reduced screen brightness, set up all my email accounts, stocks, facebook, downloaded a bunch of apps, and personalized it. When I went to bed at 3am, it still had about 50+ juice left - that was after 5 hours of moderate to heavy use.
Woke up at 7:30 and had just under 50% left - but have been using it moderately all morning. Finally went under 10% around 12:30. Got a good 15 hours out of it with no problems at all.
I have wifi turned on at home and work and i'm in a 4G area. No problems so far! Battery life issues are overblown in my mind.