So far, so good. It's been off the charger since last night - definitely going to need calibrating, as the meter already reads 60% w/ moderate usage, but I'm just happy it seems to be tracking consistently and isn't giving me the dreaded "?" in the battery bar. I plan to run it until it's dead and charge it fully to calibrate it. My old Droid Eris took a few recharge cycles with the Seidio 3500 before it tracked the battery correctly, and even then it would get stuck at 5% for a disproportionate amount of time. It's just kind of something you have to get used to with these gargantuan-sized batteries that are sold at cutthroat prices. Small price to pay for the capacity, if you ask me.
Oh, and I don't have a camera other than the one on my X. I could point it in a mirror, I suppose, but the quality would be worse than what a user already posted before me, so it's not really worth it. I think his pictures give you about the best impression you can get aside from actually holding one.