I haven’t tried the Sephora lipsticks, but I have had decent experiences with Sephora’s makeup in general. I have used many of the eyeshadows, mascaras, and eyeliners with decent to excellent results. The stuff is pretty affordable, so I say it is worth the risk. Also Kat Von D has a strong cult following, people believe in her products, me included.
I will be sure to go pick up one of the lipsticks this thursday before I go into work for you guys and tell you what I think.