I do not usually write review but since other people 's review help I choose this product , I think I would add my two cent . first , the product be order on a Wednesday . it ship the next day and I have it in hand on Saturday . so great service from the seller . second , my biggest concern be find something that would work with my iPhone 4 in a OtterBox Defender case - for those who do not know , this be a very protective case which make the phone much thicker , wider , etc. . it be hard to find something that be adjustable to more than just the standard phone with no case . but who want to remove the case any time they dock the phone ? not I ! also I be concern about the suction cup style mount because I have hear that these lose they grip in extreme hot or cold temp . I install the mount yesterday - if you can really call it installation because it take like 10 seconds and do not require tool - piece of cake and seem to be a pretty secure fit . happy to say that the side adjust wide enough to easily accommodate the phone in the OtterBox . it will not fit the phone sideways , but since the holder rotate I do not see that as a real issue . also the bottom rest be deep enough to support the phone . and the quick release button be a nice feature . the only thing I notice be that with my special case , I can see that the opening on the bottom rest will be just shy of allow I to plug in a charger . just a hair deeper and it would work , so maybe a improvement on the next model would be to make that phone rest adjustable as well . have say that , there be a easy work around to this issue . first , the bottom phone rest be removable so I could go without it . a second option would be to keep it on and , since the holder rotate 360 , I can insert the phone `` upside down '' from how it would traditionally fit , then plug the charger in from the `` top '' -lrb- since the screen be go to adjust anyway to how it be positioned -rrb- . overall I be happy this will suit my need and I be look forward to use it on road trip .