I'd like to provide a recent positive experience. I ordered a service manual for a Yamaha CA-600 that I had picked up and that needed some repairs. In early May, I sent Mike an email asking for a quote and received a response within 24 hours. I sent money via Paypal the next day.
It took him 4 days to send out the manual, which went out via USPS (the post office). I received a tracking number and was able to check the status online. As noted above, the manual was very high quality and worth the money. It cost me $16, including shipping. He also included a CD with an electronic copy of the schematic so that I could zoom in and see details that are hard to read off of the printed copy. Overall I am very satisfied and can recommend him.
As an editorial comment on this thread, I also feel that it's in bad taste. I thought that Audiocircle had a "no dirty laundry" policy and this seems to directly violate that policy. The logic behind the policy is that it's unfair to vendors to get bashed, even if it's fair bashing, when they don't have a chance to respond and explain their side of things. It would have been OK to say something about having a bad experience with Mike and asking if others had experienced similar problems.
Peace,
---Gary