My very pricey AD999 delay conked out when we had a power surge here in New Orleans recently. I bought the unit used and on a whim emailed the company asking if there was any chance they'd repair it. (It has an internal fuse and other components I didn't feel comfortable soldering on the PCB)

They fixed it for a very reasonable fee for such a pricey pedal, and returned it quickly. It sounds as good as ever and I'm a happy boy.