Pros
SolarCity is growing at a ridiculous pace, there is so much opportunity to grow within the company and your hard work will be rewarded. Not only are you doing something you can be proud of every day when you leave, you are also investing your time into something that will pay off personally. This is a Career that never feels like a dead end job. You have to have the right work ethic though. The people that come to work for SolarCity that don't seem to make it, are also the people that treat this job with a careless carefree attitude. You can't just skate here, the company wants you to grow with it, and they expect everyone here to treat it like their own business. There is nothing wrong with that. Office Culture is great! Come in, do some work and have some fun while your at it. One of my favorite things with this company is the team aspect... what I mean by this is, your ideas go a long way, and they want to hear them.
Cons
There is a lot of change, and no change comes without a learning curve. Sometimes it feels like the company is making decisions without actually consulting with its front line. I will admit though, when they see that something isn't working the way they expected they are the first to say "that isn't working, and sorry." I would rather work with a company that has growing pains like this, than a company that is stale, and doesn't seem to care about it's employees. Comp will come. This isn't a get rich quick scheme and you have to understand this coming into the position.