I'm a coffee drinker, I have coffee drinker teeth. Yuck, I know. I came across a Groupon for 75% off a whitening at OHD. It is located on the other side of town from me, so I wasn't planning on returning after the whitening. However, their service was great, from the handwritten thank you's, to the gift bag complete with cup and lipgloss, I was sold. So, when it came time to bring my daughter in for a check up and cleaning, you know where I called. They have always been over the top friendly and go above and beyond for their customer. After my return visit for a cleaning I left with a free custom whitening kit to continue fighting the coffee teeth blues. :)