I saw a segment on Sonora Living Live and thought this was a great deal. I've been whitening my teeth by myself in addition to having trays from 10 years ago. The reviews were positive so I easily booked my appointment on line. Nicole did the procedure and was very friendly. I sat in a room with another person which didn't bother me at all. The chair massages you while you lay and relax. Nicole checked me every 10-15 minutes. I brought my headphones as suggested. My teeth definitely went down 2-3 shades whiter. They were pretty white to begin with but I wanted to take it down a couple shades whiter and this system really worked! I am so happy with the color. I'm booking a session for my husband as soon as possible.