I've only been a P3P owner since last Friday night, bought second-hand, UPS delivered about 7 p.m. - too late to fool with it that night. Saturday morning, the first thing it told me when I fired it up was that it needed FW updates for the RC and AC.... put that off while I played with it first, watched the tutorial videos Sun. night, followed them to a 'T' and no problems whatsoever, finished in 20-30 minutes.
Flew it this morning at dawn and it was perfect. Much better video signal than my P3S!... yeeehaaa