I thought I was lucky and that the reviews were just very unlucky people. No! First, this is not a build for beginners. Although the price would be based on them. Unless you have done extensive research, this will be pretty overwhelming. My build experience has been exclusively micro, so it wasn't uncommon for me. The device is simply unreliable. Frame: the best part of the kit! There are no real complaints. FK: As far as I can tell, everything is fine. No problem. VTX: The supplied cable socket for VTX does not work, direct soldering to pads works fine. No big deal. Good antenna with a suitable holder for it. ESC: I think 15A is not enough for the batteries I used. 3s GNB 530mAh LiHv 90c/180c Burst. I assume that with the calculated power of my batteries I have exceeded 15A on ESC (24A). This caused huge desync on the first hit. Motors: Sounded pretty smooth until the desync hit my roof. The motor cable on the motor came loose from the stator and all the propellers flew out. (These were OEM bolts. They were too short!) All in all, it's an F. Skip these, especially if you're a beginner. Good flight!