I use the camera for diving and am very pleased with the photo quality. It is comparable to the one GoPro. The camera even in low light conditions (cloudy mountain lake) very good photos. To attach the camera to the BC or on a retractor, you can just use a key ring otherwise the supplied accessories is sufficient for almost all applications. The Wifi function is very convenient as you can transfer the photos to the mobile phone the same, the only drawback to the photo transfer is that you can individually select each photo must and no preview image looks.
My Conclusion: + Super photo quality + Price / performance unbeatable + Very much accessories included - Transfer multiple photos a bit tedious