I just started flying the Parkzone Spitfire MKIIB. I did not have any problems on it's maiden flight but the weather here in Ohio is rain all weekend so it may be a while before it goes up. I also fly the Parkzone Centurion and the plane will sometimes cut out if I'm flying it at sunset in a certain parking lot. Seems it happen most often near the lights. Not sure if the light sensors are screwing with it. The only other PZ I own is the Stryker B. Now that radio seemed to get constant interference. So much so that I'm not going to fly it until I put a reciever and speed control for my Spektrum DX6 radio. Being self taught and only started flying early this year, I can not really give you advice. Just my experience with Parkzone. That being said I still love their planes.