We have had our system for a couple months now, and although I cannot speak about its longevity just yet, I can say that both Dominic & Jason at Florida Solar Design Group are friendly, knowledge, and very professional. They have been easily accessible when we have had questions about our system. We met with several other solar companies & Dominic's presentation blew the others away! Our pool is warm, the system looks great & I would definitely recommend Florida Solar Design Group for your solar needs!