a little too early to tell i would imagine.. i can let you know tomm
but kinda hard to compare it to my evo since i rooted the phone as soon as i could... spend a year with the phone rooted
so of course, the phone was better than a stock evo
i dont think this should be bad, as long as you turn your data off and all those other things you can do to save batt.
of course, at 1st everyone will be playing with the phone, so its hard to say but with normal use it should last as a phone like thing should.. smartphones have never been known for their batt