Absolutely the most unprofessional "customer service" I've ever received. I would more appropriately label this a "customer disservice." I'm an EXTREMELY tolerable person and hate to give bad ratings yet this couldn't go unnoticed. I'll spare the details as there were SO many flaws I actually thought a friend had set me up - as if I were on a hidden camera show.
As for the actual whitening, it wasn't that noticeable after only a few days. The procedure was mildly uncomfortable (as expected with teeth whitening) yet relatively quick. I guess you get what you pay for? I'll stick with Zoom.
Unfortunately, I am unable to recommend this service to anyone.