I had some guy I know try to sell me some stuff from them. He was offering some ridiculously low prices, especially for him being a middle man. I mean we're talking dirt cheap here. I don't trust stuff that cheap, I buy into the whole "if it sounds to good to be true it probably is" philosophy.
However, I don't know this guy or whether he was full of shit or what. Never heard anything from anyone whos actually used it (of course he told me its the bomb). Thats the only thing I've ever heard about Progressive Labs.