After the first two September firmware updates I suffered from all the compass issues and an almost flyaway ( thank-you bushes). Called Yuneec and they requested I send it back right away. Yuneec also said they would replace my broken props. So off it went, and the next day another firmware up date was released that may have solved my problems. I just received my H back today. Now I had taped a list of the issues in big bold print on top of the foam case. One of the issues being that the blue power light in the ST-16 does not work all the time. So I get the usual quality check list that they inclued along with what parts they replaced. (GPS board) Well this is NOT the H I sent them, they put my serial number on a different aircraft. I know this because i marked mine with UV ink inside the battery compartment. The so called flight test was not performed with my ST-16, or if it was they erased the video and telemetry files. Last on on there is my last flight. So they changed out my aircraft, did not fix my ST-16, and did not replace my props, and who knows what controller to test every thing out. Yes they are getting an Email from me. They will also be getting a scathing phone call. I hate when someone commits to doing something and then doesnt. So who has a good deal on props?