I have no idea how good he is, but I just sent a pedal to
www.pedaldoctor.com in Tennessee based on recommendations here. That's a tough call on a newer pedal. If you can get it fixed for less than half its current value, I might consider it, or if it's a classic pedal like the CE-2, I would definitely do it. But if it's just a regular Boss chorus that they still make, I might be tempted to bag it and get a new one.