Indeed. I have to believe that iTead and Seeed use the same fab. The prices and offerings are identical, as are the specs, last I checked. I've used both and the boards look identical. For some reason, I get faster (and more consistent) turnaround time from Seeed, just over two weeks. From both, I've had drill hits that I thought could be centered better and the silk screen on my last order was thin. There is definitely some batch-to-batch variation, but I've never had a board not work. I don't suppose my designs are pushing the limits very hard though, in fact I make efforts not to. I've also used OSH Park, their boards are super, obviously superior in several respects.