I used 'em. For two weeks. I really recommend steering clear. They're true to the club type approach -- don't tell you much about what they're going to do, and provide no options. In my case they slapped a skin piece on me, it itched, hairline was totally obvious .. and they claimed it was the "mercedes" of hair systems. I asked them about lace to solve the hairline issue, as well as make it more breathable -- they simply said that lace created more problems than it was worth.

They're a waste of time.