anyone heard of ismile teeth whitening? ?

Is this company reputable or worth investing in or using as a teeth whitening company ... more info the better .. thanks!
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I also had it done about 2 weeks ago. What they do is give you a mouth piece that will mold to your teeth, put this gel in it and you stay under a light for a certain amount of time. I continually asked for a longer amount of time and the lady was kind of enough to give it to me. I got 2 sessions for $99. Before the whitening we looked at where i was on the shades, and I was only 3 down from the top. Within the first session I went up one shade, and in the second session I went up an additional shade. So for me 2 shades was worth it because i can get the last by using a whitening toothpaste or something. Everyone is different though.. It depends on what you're looking for. If you want 7-8 shades.. forget it. btw. The week after my second visit the ismile kiosk went out of business.
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