Pros
The biggest pro is that even as Uber grows as a company, it remains an organization run by owners at every level. As an owner, I'm entrusted, enabled, and empowered to drive the business forward in the best way I see fit. I don't have to wait for rounds and rounds of alignment. This means I can just be be a creative problem solver and don't have to worry about what happens if an idea fails. The goal is to test something out and pivot from there. If something works, great! Go deeper and scale! If not, great! We've learned something that enhances our understanding of the business and can be more effective going forward. There's no time to worry about posturing or how things are perceived. The people in my office (like every other office) only help to reinforce that culture. I've got a built in support network that is always willing to drop what they are doing to help me achieve my goal. No one has ever said "that's not my job" because we are all owners. Oh, and it doesn't hurt to be at a company that is literally changing the world. I've never felt such a purpose to the work I get to do. Whether I'm seeing tears of joy in the eyes of a newly onboarded driver partner whose live Uber is changing or an initiative I've created that scales to the rest of the company in no time flat, it's easy to jump out of bed in the morning. I used to be in the Corporate America rat race and only wish I joined Uber sooner. The best part is while Uber has already had such an impact, I truly believe the biggest impacts are still to come. That makes the work only increasingly important and interesting.
Cons
Everyone (correctly) talks about the hours. I used to work a true 9-5 and I have a wife so previously, work-life balance was important to me, but that was because my work was unfulfilling. I love the work I'm doing now and don't count the hours since I'm working on problems that I'm personally interested in solving. As the company scales and gains efficiencies, I can see some of the hours reduce. The salary was a step down from my previous salary, but the equity more than outweighs that downside.