they are pretty good... about 2 years back, I bought my P3 chips there. Somehow, they screwed up with the order and sent me the wrong chip (550 instead of 550E). All I did was returning the chip and bought a new one. By the time I ordered it again, the 550E chip have dropped $20.
I bought a P3 700E from them, after asking if all their retail chips were cB0 stepping, they said yes. Sure enough, it was a cB0. I also bought an ethernet adapter from them. Shipping is a little pricey, but the quality of service is great from what I can tell.