HTC EVO 4G :: Noticing Huge Battery Improvement With Upgrade?

Before the update I would bring my phone to work at 100% and with moderate usage, maybe some Pandora/web browsing and it would be nearly dead by the time I brought it home 8-9 hours later. Or even at night lets say it was at 100% when I went to bed, I'd wake up without it plugged in 6-8 hours later and it would be down around 50% battery. Now the difference is almost night and day. In those same time periods I'm coming home from work now with 60-70% battery when I had 10-20% before. And in stand-by the phone hardly uses any battery, at most 1-2% per hour. I am now extremely satisfied with the battery use, it's much improved from the Palm Pre I came from. Also, before the update my phone was power cycling/resetting about every 10-20 mins. I would also experience times of extreme lag when trying to either open multiple apps at once or go through the menus very fast. I even had an an appointment setup at Sprint to have them look at the phone. However, once I applied the update the phone is much faster and I haven't experienced so much as a hiccup. Anyone else experiencing these positive changes?