ARP installed a 10kW array at my home in Washington County, Ohio. The process from start to finish went smoothly and the end product is excellent. Everyone I have interacted with at ARP has been friendly, helpful and professional. If you are looking into installing a solar power system, you will be hard pressed to beat ARP.
As a side note, I received estimates from five solar companies. Four of them were within a couple hundred dollars - one was very high. ARP's quoted price was actually the lowest. That was not the deciding factor, but it didn't hurt either!