Don, sounds like a bad experience for sure. What flight mode were you in when you started coming back to yourself? How many flights did you have previously? Did you send the controller back to Yuneec or do you still have it? I've not had to send mine back in for any work thus far (knock on wood) so I can't give you any experience story - good or bad. I know in the past that when something has happened that was the fault of the aircraft that Yuneec has stepped up and given full replacements, maybe not in all cases but in some for sure.