I only have positive comments about iteadstudio.
If you look at my signature link, all the green boards came from iteadstudio.
http://www.crossroadsfencing.com/BobuinoRev17
The yellow & blue boards are from http://www.internationalcircuits.com which also turned out very nice.
All came back error free, clear & crisp stencilling, no electrical problems at all.
They both accept really small dimensions as well - 6 & 8 mil wide traces, 12mil diameter holes, 8 & 10 mil clearances.
The unsoldermasked board came from a US boardhouse in AZ, I needed a board real quick and didn't wamt to pay extra and wait longer for soldermask & silkscreen, which made assembly tricky - way to easy to have shorts with 10 mil traces and 10 mil clearances. China shops were closed for New Years, calendar oversight on my part. Now that I know how much easier solder mask makes assembly, I will use that on All boards I order, US or international.