Hi there,
I've never used them or heard about them until now. I've heard from a few people when it comes to door skins that they have trouble with getting them to align correctly. I'd be wary about such issues if I was going aftermarket, IMHO I would go genuine but that's just me I like things just so.
If your in melbourne have you tried Zworx? Warren used to have heaps of front fenders hanging up I'm sure you could get a good second hand one that only requires a little work.
Best of luck.