They cool. Always one of my pet hates when punters think they can just go and get their plates made by whoever or make up a pair themselves. Yeah, it's understandable that if you had a JDM car the older ADM plates would never fit, but some twonks only had theirs' made to try and thwart speed and toll cameras.
Those plates are a decent price too (apart from the annual fee which is just bloody theft IMO) as if you get caught by the blue shirt mob with homemade plates in NSW you get a fine of over $400 and lose three points off your licence.