I've used it before. It's a one-step product, and it falls right between reflections and mothers carnauba. I believe Forrest said it is a nuba/synthetic hybrid, sort of like Poorboy's EX.
I found it didn't clean very well, so proper surface prep is necessary. As a topper, though, it is quite wet looking. From a distance, it looks as good as any high quality nuba, but I don't like it up close. The reflections aren't very sharp, and it leaves something to be desired. Durability is around 6 weeks.
:wavey