I had the Zoom performed a week ago. It was well worth the money. I must have had a very exerienced dental assistant do the procedure as it was easy. I had one small "zing" but nothing after the treatment. I went up 7 shades and a week later, it still looks great.
I did stop the coffee, soda and pasta sauce but that's OK, I really didn't find it hard to give them up. Everyone has commented about how something about me is different. Some even think I lost weight! I am really pleased with the results.