Pros
Incredible people -- smart, curious, collaborative. A product that's changing customers lives and making businesses better. World class clients I'm proud to mention. Frequent access to the executive team. A culture of honesty and feedback, where growth is encouraged and people are valued. A once in a lifetime opportunity to build and grow in an environment like this with a company at this stage. I feel lucky to work here.
Cons
It's hard to build and execute simultaneously. It's a constant balance of prioritization -- what needs to be done now, what can wait, how to make progress on longer term vision while continuing to build the infrastructure to get there. If you're not someone that's flexible and able to roll with the punches (meaning sometimes lots of ambiguity, needing to make decisions based on limited information, trying things that "haven't been done before"), it's not the place for you.