Pros
Young, energetic culture, though that is changing as the company grows. Great, genuine people No weak links among the departments - strong sales and marketing, great products and services, engineering, field operations, etc. The founders, Peter and Lyndon, are very hands on and have great instincts, but also have integrity and don't have the "edge" that you sometimes get from visionary leaders
Cons
Extremely fast pace, even for Silicon Valley, guess this is good and bad but can make work-life balance difficult sometimes The culture is changing as the company grows - this is inevitable and happens to all companies at SolarCity's stage, but SolarCity's culture is so unique that it's still kind of a bummer The company has outgrown its available parking at headquarters, which is pretty annoying.