Having mine for two weeks I can say I think you will be very happy. I have a Tech21 case and a wireless charger for mine. It is no nice being able to take it off the charger in the morning and have it last all day until I go to bed and just place it back on the charger. There is no way I could get 48 hours out of this phone but easily I get a full day of at least 18 - 20 hours with battery left.
I have no real complaints with the Maxx, but I do have two questions.
They maxxed this phone out, why not include OIS? How come the update has not rolled out yet?
I love this phone and it is working flawlessly on AT&T