I used it for a very short time and found it to be CRAP. Whether it was me or my system, I had the worst problem with it. The movies seems to have burned fine but while watching them (and towards the end of the movie), I would start getting artifacts on the screen until it would completely stop playing. I would end up having to eject the DVD. I use DVD Shrink and it is amazing. I also used AnyDVD and CloneDVD for the first time last night (DVDShrink just did not want to "backup" Resident Evil: Appocalypse) and it worked like a charm.
I would never look back from the programs that I am using now.