The product is simple, straight forward and works well!
Simple means, its very easy to use. I like how you can squeeze the arms to tighten around the phone, and the one button to release is very handy. Its straight forward to install in your car! I poped the arm in the ball socket, and then clamped it in my car air vent. Also, it works very well in terms of holding my phone (samsung galaxy s8), so you can be rest assured that your phone is not going to fall off. I also like the fact that its very adjustable once you have installed it. The arm can swivel up or down or sideways (in any direction) given that it has a ball hinge.
Given that it has to be installed in your air vent, just make sure that the clamp can fit in your air vent. Also be aware that once installed, the air will be partially blocked and "free flow" of air will be affected. My suggestion is to adjust the phone mount until you find a spot where you will be happy with.
Its a definitely a great buy! I highly recommend this phone mount.