The guy is also a complete fraud.
There was that notable example of him completely ripping an old modscene tune for a track on the Nelly Furtado album (search youtube, there's much evidence about) and that's just one he's been picked up on.
I don't doubt overall his production standards are slick, but give anyone a team of proficient engineers and the best quality studio gear money can buy and they'll probably manage to put out something equally slick.