I'm loving my P4.
Best bits :
Great satellite pick up. My P3s will sit for ages on 6 sats at home, then crawls up to 7 or 8. The P4 boots up with 13 and rapidly increases from there.
Sport mode: This was not a feature that made me decide on the P4, frankly it didn't interest me much. I was wrong! It is awesome, especially when trying to come home against a head wind. It needs to be used with caution though obviously.
Yesterday I brought it back to me from a fair distance out at sea. I looked at my Ipad and noticed the props in-shot so adjusted the gimbal to get rid of them. In the few seconds I took my eye off the bird, it had arrived over head and was going full tilt towards the cliff behind me.
With a tail wind, it had reached 50mph, which in the air is blardy quick and much quicker than it looks on screen.
Strong signal: Haven't distance tested it yet, building up confidence in the bird but, compared to the standard it is rock solid.
Good but not great bits:
Camera: Not quite the leap forward I was hoping for over the P3s, better for sure but not by a big margin.
CA : Don't really need it, I use it sometimes because of it's novelty value but I'd rather they'd spent that money on improving the Camera.
'c' buttons: customizable I know, but they are exactly where I hold the remote and I'm constantly switching them on and off
All told, I think it's a great bird (so far) and I'm glad I bought it, rather expensive but hey, you don't have to eat
every Day eh,