It doesn't work for all phones, on mine it sits on the (-) volume button and results in if it moves too much it completely lowers the volume

It works well for now. However, it doesn't seem to have the best quality of materials.
(Although it doesn't claim to hold devices up to 6 inches or 88 millimeters in width)

Edit: I have had it for a few months now and it still hasn't broken. Admittedly, I don't use it very often, but it does its job.