Dave and his crew were great. They were very helpful and knowledgeable in helping me choose the right tint for my car. Dave knew his stuff and was not pushy at all. In fact, he was very conservative in his recommendations, which I appreciated.
The heat wall was very helpful in demonstrating the effectiveness of the various grades of tint. The lobby and waiting room were nice, clean, and comfortable.
I got the nanoparticle film on all windows. It was expensive, but it looks great and given professionalism of DC Auto, I feel comfortable that I made the right choice. Plus, with the no-fault warranty I don't have to worry about scratches that might occur.
Update: drove with the tint in full sunlight today, it looked great, except one weird anomaly. I have polarized sunglasses, and the clear front windshield piece makes odd colors and hues when wearing the polarized glasses.