This is the phone holder I have been looking for!!!! It has sticky suction cup so will even stick to "orange peel" dash board. (Have not used it in summer heat yet). The addition to the second sticky holder for the arm takes the bounce out of the phone holder and reduces the weight on the suction cup. You can adjust the holder to te width of your phone and move it back 1 so it still holds your phone tight but still allows you to place and remove your phone by simply sliding it in or out of the holder without having to adjust the grip. Longevity should be good as it is well built but can't say for sure as I have only had it for 2 weeks. Highly recommend this holder!!