I received the update yesterday. I did about 20 speed checks.Browsed on roaming for at least a half hour. Was roaming standby overnight,slept at my girlfriends in the hills. Today did moderate calls of about a half hour. At 29 hours 30 minutes my battery is still 50%. Huge difference so far. Oops, forgot I charged in the car for 30 minutes.But this is still way better than before.