I have received the holder a few days ago and immediately tried: The suction cup will not budge on the disk, as you would expect from a flat suction cup. The bracket in which the mobile phone is coming in which I find universal set of width very well. Because that is also a mobile phone with a protective case can comfortably accommodate it. Simply pressing the retaining bracket 2 together and stuck the phone. Each side in the inside of the brackets are small foam inserts to protect the cell phone that by any scratches. Since the HTC the opening for charging cable is covered by exactly one lateral. Holder, I have my cell phone just so reingesetzt that the opening side to see again. Then also works loading problems when driving. I am very happy with the support, and can really recommend it.