Traveling to Phoenix with my son only to find that his phone wouldn't start up after the flight. I tried all the usual things suggested on the internet but without a PC or MAC I was pretty much stuck. My son has a 3 year old iPhone 4 but he's never updated the software or backed it up or any of the other expected things but he did have a lot of pictures and data that he was afraid he'd lose.
Long story short - found Mac I Am on Yelp. Went to see them the following morning. We were greeted in such a positive way and were told that they could fix it. They suggested we grab some late breakfast and they'd call me when it was ready. 45 minutes later, the call came in. The phone was fixed, AND updated and cleaned. They even adjusted a failing Home Button.
My son and I were both very impressed. All that for less than $20 !!