7.1 Beta 1 was pretty good, Beta 2 I thought was very very good but Beta 3 just isn't working out for me. Battery life is not as good, App store crashes and basically a lot of random crashes. I always do a wipe and clean install. I just did a DFU back to 7.0.4 and am actually surprised with how much smoother it feels. Been a long time since I was on 7.0.4. It actually feels pretty good. I guess I am waiting on B4 before I hop back on the 7.1 wagon again.