Pros: Amazing, beautifully white teeth really fast.
Cons: Can experience a couple of days of discomfort after (zingers). I had ZOOM! whitening treatment in 2010 and loved the results, which have been kept up pretty well by using the Nite White product for regular touch-ups. I had a second round of Zoom! this year as I noticed that though my teeth were still white, they were not as white near...