I purchased a Corda HA-1 Mk II from Todd, and just received it today. I've been grinning broadly for the last hour, but felt obligated to spare a few minutes to post my impressions of the sale.
In short, everything exceeded my expectations. Todd was remarkably prompt in responding to my PMs, and politely helpful in his answers to my questions. Without being asked to, he sent the amp out via priority mail, so that it arrived within just a couple of days. Also, he threw in a nice set of interconnects completely free of charge, only telling me about them after the package was in the mail. It was a wonderful surprise when I opened the box, as it was the one thing I still needed to complete my system. Also, when I was bidding for the unit, I offered a certain amount to top the other bidder, and when the other bidder retracted his/her offer, Todd let me have the amp for the lower amount.
I would not hesitate for a moment to do business with Todd again, and neither should you.