This is a very good selfie stick. The face tracking is very accurate and sensitive. Even when I moved fast when making some sport videos, it can track my face 100% accurately without any delay. And I tried it under dark light, it works as well. Another feature I like is the beauty filter, it will automatically make my skin more smooth but still looks natural! This is the first product I had that can make long video with this feature . Other apps with beautify feature can only make videos shorter than 5 minutes. It is very user friendly. What I need to do are only to turn on the device and open the App. It will automatically connect to my phone through blue tooth. Besides, it is batteries supported so I can use it to make outdoor video. The only thing i think it can improve is that the phone holder is a little bit too tight, you need to use two hands and pull it strongly to put the phone in. But the good thing is the phone is very steady on it when you make outdoor video.