The rubber bands for the additional protection I find useful, a device in this price range you are but rather doubly careful. However, one must say that the handling is slightly limited by the bands. If you use the phone while driving only for a Navi software to aufzuzeichen a route or to depart, you get no problems. But I want between times a photo shoot while driving or record a video. The interaction with most applications work if still ok. I do, however, by default, a character to unlock the device, this can be difficult to enter with the tapes. If you are planning more interaction with the phone while driving, you should better disable the keylock.
In summary, one can only say that it is a must-have for cyclists in this bracket, and this support is an absolute bargain for the price. If the holder has for some time maintained on the bike I will also test times on the bike: D