My (AT&T) Samsung S2 Skyrocket will be off-contact shortly and I'm looking at the One (also from AT&T) as my next phone. Previous to the S2 I had an HTC Desire, so am familiar with Sense, or at least what it was that long ago. So I'm wondering if anyone here has upgraded from an S2 or similar vintage Samsung phone and, if so, how different your experience with the One has been. Are there things you liked on the S2 that you really miss now? Is the One a lot better or more convenient at certain things compared to your old phone? How about battery life? Any pluses or minuses in going with this phone upgrade would be appreciated!