FWIW, I had a order with OSH Park turn out great, another order vanished. Since Laen never contacted me, I never got to pay and hence the board was never produced. When I brought it up at a later time, he apologized and told me that he'd come up with a better order documentation system that wasn't as prone to fail silently.
But, given the limitations of the fab that Laen uses, I prefer iTead - smaller vias, tighter allowances. Boards that can be made by iTead have to be redesigned for Dorkbot. The dark purple color is cool, the gold surface coating is a nice touch, but ultimately, most of us are primarily after getting their boards turned quickly and hence a consistent process is a big plus.