From the few members I have discussed this with, it's not that great of a buy. You'd be better off with an aftermarket pcv plate, or even a VTA catch can in the appropriate location.
Forgot to add, with larger turbos it seemed to just shoot oil out on several cars, so my above recommendations hold more value when you start making real hp. There are a few people with no problems, but if I recall, they had mild setups.
I'd look elsewhere, just my opinion, with my experience here. Actually, i probably have read over half the site, probably more. Not to mention my constant monitoring and reading, so yeah, screw that noise. Lmao