To extend its life, I believe that we must not change the position of the support once it good location found.
Maintaining the phone is good, and can easily position it in portrait or landscape mode. Please note that said, this support is not suited to smartphone featuring side buttons located towards the center (like my Sony xperia z for example), becuase the phone must be shifted on the support that makes the course look for On one side, which is not ideal for reading guide information including gps fashion.
However, I can not put average because not withstand more than a week in "normal" use (ie not force like a nag to install), clearly demonstrates the poor quality of product manufacturing .
