I am getting a 7.7K system installed by Sullivan Solar Power (based in San Diego County) as I type this post. Everything has worked out excellent thus far and it should be a good return on investment (I purchased the system outright) with a break even point of 6.5 -7 years. If you are interested in getting a quote from Sullivan send me a private message…. Sullivan will give you and I both a $500 referral bonus (check/cash , not a reduction in contract price) once you install the system. Sullivan provides a system production guarantee for 10 years (with web based production monitoring), 10 year system insall warranty, and 20-year warranty on the inverter (I hear they typically go bad at 10 years). Sullivan wasn’t the cheapest quote I got (they were close), but they were very professional/knowledgeable and have excellent reviews — plus they are a local San Diego County based company and an Ernst & Young EOY semi-finalist http://www.ey.com/US/en/About-us/Entrepreneurship/Entrepreneur-Of-The-Year/SD_Semifinalists