We have had our system for just over 4 years. No issues to report. This company is very solid and has great integrity. The initial consultation was completed on site and documents estimates were supplied in writing. All applications/ permits etc were completed by the company for utility review. Any questions we had were addressed immediately. Once on site the workers were polite, organized and very neat. All materials and garbage secured and hauled away. Installation was professional and every effort was made to keep service wires hidden. Although you may find cheaper panels, make sure you are comparing the same quality of units as they are not all the same. Our system runs seamless and you don't even know it is there. Challenges *Confirm with you insurance company that they will insure your home after the installation. * Make sure all your application for inspections are complete can take a few months for utility to inspect. *Confirm your meter is changed by the authority. Again very solid company with great results. I have no issues recommending the company for installation and service.