I bought this for my husband as a gift, thinking he would use it in his vehicle. However since he uses a hard shelled protective case on his iPhone, it is a little difficult to get the phone out of the mCup, even if using the larger set of adjustable grips that came with it. Let's just say it fits in there REALLY securely, which is actually a good thing when he's using the mCup to hold his phone while he's riding in a golf cart playing golf. In that situation he doesn't need to take his phone in and out of the mCup much since he's just using the phone's GPS Golf app for yardages. But getting it out in time to answer a call can be tricky, especially when driving down the road in a moving vehicle. He's now keeping the MCup in his golf bag to use on the course and bought a different model for use in his truck. I think however, that if his phone's case was a thinner model it would work better with the mCup, but he prefers the case he's using and doesn't want to get a new one. I have tried the mCup with my own iPhone, which has a thinner protective case on it, and did not find it cumbersome to remove. The only other complaint is that the adjustable part that fits into your cupholder has a tendency to work itself loose, but it is easily tightened up again with a spin of the knob, without having to take it out of the cupholder.