Read a few reviews of it on Dan Blanton's board and it appears to be the usual "some love it and some don't" responses. The start up price it too high for me to ever want to try the it. And this stuff is pricey, beyond just the cost of the light.

A 10cc tube of Tuffleye core or finisher, about 1/3 an ounce of product, averages about $9. An 8 oz. kit of 30 minute epoxy by Z-poxy runs about $12. Having looked at the video on their web site, it looks like their product has about the same viscosity as epoxy, so I imagine you'll use similiar amounts. Sounds like a very expensive proposition, to me.