Polaron met my expectations. The proposal received explained how the system worked, the benefits, and projected savings. As the project proceeded, I was kept informed as the work reached the various milestones along the way. They responded to my questions as they came up. Once installation began, it took about a month to complete. Installation was later than expected. Initially I was told the system should be completed in the fall of 2020. But it was delayed and not completed until April of 2021. As the weather warms up and the sunny days get longer and more frequent, we are enjoying our solar system.