Pros
The people you work with are great and the mission is inspiring. "Free" Lyft Credits was one of the best perks, although not really free as they are taxable.
Cons
If you're not on the tech side of the company, you're a nobody... which is reflected in compensation, career outlook, and highlighted/championed company objectives. The hyper growth of the company has led to an increase of managers who never should have become managers to begin with; you'll find more people leaving their bosses here than leaving their jobs. There is no concrete process to identify or remove poor managers; which usually comes down to nothing more than one's word against the other's. The kool aid goes sour fast here as there is a huge focus on culture, without much action to back it up – especially if you're not in their San Francisco HQ office.