Tried Mike's Polishing last week while I was out of town and picked up the parts yesterday. I have 99% good things to say -- he couldn't get to it immediately, so we scheduled for when I was leaving town, and he delivered a week later as promised. He could get into some tight corners on the top of the AC compressor (1% off), BUT he told me this clearly up front. Everything else (either polished from cast or re-finished after going dull) looks excellent! And the price was very good too. For polishing an AC compressor and IAB valve, and re-polishing the upper intake, EGR spacer, throttle body and blower intake tube, he charged me $150. And he's a very nice guy to deal with too.
I definitely recommend him!
These pics may not show the finish properly, but you can see it up close at the next meet...
Cheers,
-Neil.