Never heard of them, but at 40% off you might be able to resell new & unused for a fat profit.
Edit: the Rollik 557 gets good reviews.
I'm quasi interested in a hardtail MTB. I have a colleague who's gotten religious about full suspension and he thinks I'm crazy. But all I'd be doing is hiking paths and cinder trails. I don't need all that guff.
Anyone else tried one of those carbon drives? I had one on a Dahon Speed Uno but it was meaningless relative to geared bikes.