I saw some positive comments from some other buyer, but I have to return my, and ended up pay more to get a brand new one. The RTH does not work, Motor continue spinning after landed at times, sometime would not power up (reboot) correctly, and a few times I was not able to power it off, I have to pull the battery out. When I contacted support, they told me the refurbished unit (by Windsor) has limited warranty, the new one has a two years warranty. Maybe I got a lemon!
