We all, and I'm as guilty as anyone, tend to voice complaints faster than compliments. So, I just want to acknowledge some great customer service from Sionyx. I ran their Nightwave unit all last season and was quite happy with it. However, on my first pre-dawn runs for tuna this season, the image seemed foggy. After cleaning the lens (in the dark) I didn't see any improvement. After sunup I had a look and there was visible condensation in the shield of the lens. The next afternoon I sent an email to Sionyx and within an hour or two had a reply stating that was absolutely not acceptable, and to please provide my shipping address. By the next next morning a replacement unit was in transit and within a couple of days the new unit and a return shipping label were on my doorstep. So kudos to Sionxy; for the price of marine electronics, I wish all vendors were that attentive.