I wasted soooo much time doing home teeth whitening...tooth pastes (what a joke), gels (useless), tape (ridiculous).
BriteSmile was recommended by my dentist. I decided to plunk down the money, and it was like every sin--coffee, wine, cigaretes--vanished from my teeth.
I didn't go to a crazy glow-in-the-dark white, which is good since that's not what I wanted. I think it was 4 shades of lightening.
I didn't wear trays afterwards because I was happy with the level of whitening. Also, bonus was no sensitivity problems I've heard about.? I recommend it.