A review for Circle stickers by karl holzenthal.
There are some reviews on these stickers saying how the resolution is not good...If your laying out you design properly and starting with quality stock images or text you have nothing to worry about, mine turned out AMAZING! The turn around time doesn't even make sense! I received a proof in about 4 hours and conformation that the stickers had been shipped less than 48 hours later! I found the service about support to be way better than the more "popular" online print houses. One of my concerns was sticker material and overall wear and tear. I stuck one of my stickers to the back of my iPhone a few weeks ago when I first received them in the mail and so far it looks just as good as when It was first applied! I will be ordering many more stickers for these guys!