Had to wait until I got home from work this afternoon, but both my iPhones (1 2G & 1 3G) have been updated. Both phones updated successfully the first time, with no errors or re-trys.
No problems so far - both phones are running fine. I turned push on both units to see in a few days, the battery life fix (will report back on this).
Apps load quickly, backups fast (mine were usually fairly quick anyway). Both phones have at least 10 apps, no problems with them either.
Don't live in a 3G coverage area, so I can't speak to speeds (a network issue anyway), but I can attest to call quality, which is extremely good, also for both.
All in all, I'm impressed with this update!