Pros
If you are a construction engineer or solar panel installer or a sales guy specializing in solar panels, you may want to check it out.
Cons
If you are a technical guy, it's wise to stay away from this company. Lot of software engineers realize this only after joining the company -- the company is not software company. It's a construction company. I was one of the guys who got tricked by glassdoor ratings. On my second day in the company, when I witnessed HR subtly forcing all the new hires to write positive reviews in glassdoor, I realized what was going on. Just like any other online reviews, take the glassdoor rating with the grain of salt. There is nothing interesting to work on in software applications. Most of the systems were legacy and full of spaghetti code. CTO is full of arrogance and would talk down as if it's your privilege to have a glace at him. Because of the nature of the business model, you would find out that most of the managers came from construction/utilities and have no sense of managing software engineers. I was overwhelmed by the micromanagement across IT division. The pay is low and not comparable with software companies in the bay area. There is no parking in the company. You need to allocate additional 15-20 minutes (each way) to park in College of San Mateo parking lot and take the shuttle to the company. Entire company was built on Elon Musk's hype. If you are tempted by the stock options, you may want to read the report by Jim Chanos or search for "solarcity subprime". You may want to consider the fact that stock might be worthless when your RSUs vest.