Great idea, poorly implemented
On paper this thing sounds awesome - HD footage, all-in-one stack with DVR which is remotely controlled (if you set it up).
However.....first challenge - try finding a frame that the stack will fit in. You get given some smaller screws, but even then this thing is a challenge to fit. Then there is the camera - it's long and narrow. Eachine don't provide any adapters, so it's up to you to figure out how to mount the thing on your quad. The screws at the camera are at the front, so on a lot of frames, you can't fit it because it so long.
Upshot - look at other options.
Eachine if you're reading this - improve the next version so this thing is as good in reality as it is on paper!