Guitar shop owner Ken Tobias in Downers Grove, Illinois. Changes strings for customers for free, does neck adjustments while you wait and really likes acoustic guitars. He also changes my cittern strings and only charges me for a set of mandolin strings (instead of by the gauge, which would cost a fortune). Of course while he's putting them on (and polishing the neck), I have tried out some of the new guitars that come in. That's how I wound up buying my last two guitars (a taylor K14-C and a Santa Cruz OM/PW).