Have you used them for business cards before? It looks like they have the same thing going that every other printer I've seen does - it's all glossy cards in full color print on crap stock.
I'd kind of prefer a place that specializes in business cards so that I don't feel like I'm carrying around a bunch of magazine inserts.
Actually I have used them for business cards. You don't have to get the glossy cards, we didn't. We didn't use any of their templates but created our own and the results were good. The only issue was shipping, it takes a while. Also they don't do weekend shipping.
I'd kind of prefer a place that specializes in business cards so that I don't feel like I'm carrying around a bunch of magazine inserts.