I have used their products several times over the years. They are reliable, easy to use and they do what they say they will. No problems at all with this product so far. I would highly recommend them if you're looking for reliability in an equipment provider. Their customer service is also top notch as well. The only thing that could be improved upon is maybe having some training materials online to help people who don't know very much about marine electronics understand how it works better. We've been using these devices for many years now and we haven't had any issues yet.