I received my P4PO over the weekend. I had a chance to fly the bird in beginner mode for 31 minutes with 2 charges. It was a stable flight out of the box. No firmware update taken and no calibration done. Camera gimble checked and no humming sound detected. I have not taken any video footages yet. Gradually checking and learning the flight modes. I’m using iPad Pro 10.5 with latest IOS 11 and DJI GO 4. The screen is viewable in direct sunlight. I can read the flight information with no problem. I’m currently only flying VLOS so all I’m looking at are flight info. I’m doing all my testing in my front yard. Self limited to how high and how far to fly. DJI GO 4 warns me that I’m within class C airspace.