I would rate them pretty high. The calls are not too frequent and the customer rep I have has always been very helpful. He even pointed me to a cheap source for a RCA to SPDIF converter they didn't have in stock I needed. Most of my recording gear has come from them and a couple amps. Repairs or warranty work has been slow at times.
"Blues is a natural fact, is something that a fellow lives. If you don't live it you don't have it. Young people have forgotten to cry the blues. Now they talk and get lawyers and things. " - Big Bill Broonzy