I got one for my iMac, one for a MacBook, and one for my wife's phone, and so far they seem to be doing the job. I do appreciate the options for semi-permanent or removable mounting, as I plan on replacing my iMac. The only downside noted is my wife reports that the haptic touch sensitivity is reduced on her phone. One suggestion is to be very specific on your guide to sizing--my wife has a Note 9, which I assumed was the same as an S9, but the mounting frame was too small for the phone. I managed to take out the shield and apply it to the phone, though. And some simple math with the measurements is needed to differentiate between W-A and W-B sizes; maybe put more detailed installation instructions on your website.