I recently had the tuner quit working on my installed Fishman electronics on an older ZAD50CE Zager guitar. I contacted Zager via email and asked for help with troubleshooting or repairs. I was immediately contacted and advised that a new electronic board and transducer assembly would be mailed out to me. I received it 5 days later and installed it and now it is working like it did when it was new. I was very pleased that a new unit was sent to me and I didn't have to remove my old unit and send it in for repairs. These units are not cheap and I was very impressed that a brand new unit was quickly sent to rectify my problem. I could not be more pleased with my guitar and it's quality and now I have to say, they have the best customer service as well. Really a great company to deal with and their communication is timely and very good.