Pros: You get to work on challenging things with a really great team and can end up owning large features/backend services. The company is religiously transparent internally which means you are always aware of the company plans and reasoning behind them.

Cons: The pace of development is very quick and often ends up working long hours.

Pros: It is a great, fun, and dynamic place to work.

Cons: There are not too many negatives to report.

Pros: Super high morale, everything everyone is working on is critical to the success of the project. Hard work but never unfair, founders regularly talk about not burning out, people are encouraged to take their full holidays and up to a month unpaid leave to do cool things. The company is really transparent, anyone can read just about any email sent in the company (except HR/renumeration type things, or some confidential investment things.)

Cons: There's no corners to hide in, there's no cushy jobs, and people frequently leave before the end of their probation. Pay is skewed towards options rather than cash so it appeals to people who are willing to take a chance.