You can see the actual products the have for sale here: http://alchemylabz.eu/products.php. A little Googling on the listed analogues for sale reveals that most people in the usual forums for recreational drug use have long written these sorts of guys of as scammers. However, with this WSJ article, I'd say they are now verified as legit. I expect his business to pick up considerably...

Needless to say, this is quite an interesting game of cat and mouse and just goes further to illustrate the futility of prohibition.