I do not want to jinx this, but man, I am incredibly impressed with my battery life on this phone. I have said it before, but it has been a rock star for me.
And I like that compared with when I switched from one Droid to another, I did not feel like I had to learn anything to use the iPhone 5. Part of that has to do with the elegance of iOS; part of it has to do with the fact that I had been using iOS6 for several months in beta. But regardless, its been a good couple weeks with the phone.
My battery life has improved since I let it drain to "0" a few times. My WiFi issue seems to have some how fixed itself as well. Not sure how, just happy it did.