I'd seen them last year when I was hunting around for planted vase options, but ultimately decided against ordering any branches from them after I got hold of a stock manager there.
Be *very* careful to do a thorough cleaning on any branches you get. They do use a variety of sprayed pesticides in their storage and shipping areas and it's very possible for these materials to have been exposed to 'em. Nor can they guarantee that the wood hasn't been treated with or soaked in anything that could be potentially harmful in your aquarium.
(That said, the guy I talked to has used pieces from there in his tanks and only once had a problem that he believed was attributable to the wood)