I went to Smile White with a groupon to have my teeth whitened. Natalie was very friendly and put on a tv show for me while I waited for the process to take effect. I was impressed with how effective the treatment was and it got better after the appointment. I have many years of drinking coffee, red wine and other staining foods and after one treatment I noticed a good imprvoement. I booked my next appointment and look forward to trying the stronger gel and I'm glad to see that with enough treatments I can get my teeth as white as I want and at a reasonable price. This is a great service!