I�ve used ShapeWays for several years now and even started designing with them. Their print quality is good - especially the Ultra FUD. They have very inconsistent quality control, however. I�ve had 1/350 biplanes in my shop that printed fine for my personal order, fine for 2 customers, and then get rejected on the fourth try. It�s exceedingly frustrating. I had found the �print it anyway� feature (available to designers only) gets around the QC issue, and gets the hard-to-print stuff printed. I used them for some 1/350 sailors for my Saratoga and was very impressed with how they turned out!
I've purchased several MV-22 prints from Shapeways and theve come out great as well as some UAV's. I revently placed an order for some radomes in 1/700 scale and pretty excited for them to show up, By the way all of these prints are 1/700 scale.