I've ordered from Ernie a number of times, and have always been happy with response time, turn around, and quality. I tried TUS after seeing recommendations from Brian Fellhoelter and others, and the number of etches per stencil PLUS the reprint cost is what pulled we away from Ernie to try them, however, I was not exactly happy with the "sharpness" of a makers mark I paid for them to print. The edges were a bit pixelated, and it wasn't NEARLY as sharp as what I got from Ernie, despite sending them the same file, which I know was much more defined than what I received. I complained and had them print another sheet, which was better, but they charged me the design fee again, which didn't impress me at all, seeing as how, as far as I could tell, was on them, not me. The stencils that were printed well work great however.
All that being said, I ordered some stencil material and developer from IMG a couple of weeks ago, and am looking forward to trying it out (received it today actually). Patricia seems very nice and was very helpful over the phone with some advice, insisting that I call her if I had ANY problems, and she would be more than happy to help me through them.