My first stabilizer purchase, based on the rave reviews on YouTube, I was expecting a lot more. I agree S Harris" that it is buggy. It took me quite a while to get my bearings properly. It never seemed as "easy to work" as the demos make it seem. I was only able to get the calibration mode to work once and didn't reactivate it. And I couldn't successfully complete the calibration. Controlling the different modes with the joystick is strange and the manual that comes with it doesn't explain very well what the modes actually do. YouTube tutorials by Aochuan in Chinese. Thanks for the subtitles! When I tried to examine the device it turned off. Energy saving feature? If that's the case then it's understandable as I've only been using the battery for about an hour. Finally I was able to get it to work. Me find it awkward to use. The FOCUS RING is the main feature of this device which I like a lot. If I keep it that will be the only reason.