Let me add my endorsement for Greg's work. He recently sold me a fair priced Edeophone which he fully warranted. When I noticed what I thought was excessive air leak he insisted I return it at his expense. He made extensive repairs including replacement of all chamois gaskets and questionable valves, adjustment of action and fine tuned all reeds. Thanks to his efforts it's now a wonderfully playing and sounding instrument. In my communications with Greg he proved himself to be extremely knowledgeable, helpful and honest. I should add the instrument came with one of the fine cases he builds. I heartily recommend anyone needing concertina repair work or a custom case check with Greg.