I bought a tech21 impact mesh case for my 5s two days ago and notice that there was a hairline crack about 2 inches on the side so I returned it. The one I exchanged it for is slightly too tight so that the power button gets pressed from time to time. I;m going to exchange it again tomorrow (I feel like an *****), but was curious if anyone else had any issues with them? I had heard nothing but good reviews, and I like the look and feel, but this is a little concerning.