I am totally satisfied with Peterson Products. I purchased a Strode Plus HD Tuner, and developed problems. I contacted Peterson about the problems I was incurring and they set right to assisting me in any way they could to assure I was satisfied. They ascertained that a problem existed within the microphone part of the tuner, and set to sending me a replacement, and to return former tuner. I have been using the new tuner for a few months now, and have not detected any problems. The tuner is well worth the cost, and the assistance is far beyond what you would expect from some other companies who profess they will help you but definitely do not. I notified the place I purchased my original tuner, and explained the problems I was having, and stated the above to them, and they stated Peterson, is a very friendly, professional company. I could go on, and become redundant, but will end this review as one product I would recommend to anyone, and that their team is great in assisting resolve any problems. So again, thanks Peterson for your assistance.