Pros
Very smart and fun people. Everyone takes responsibility for their successes and failures and emphasis is placed on fixing issues, not assigning blame. Everyone is passionate about delivering the best product and service to customers. Quality and safety are genuinely the priority during decision making. Social events happen quite frequently. Sometimes small like semi-weekly happy hours or larger events like weekday or weekend trips. Also, unlimited PTO that people actually use. Catered lunches and an outdoor eating area make lunch relaxing and inevitable there are in some interesting conversations.
Cons
Roles, responsibilities, and processes are still very much in flux so you may end up with some extra work that you didn't expect to do. But it also allows for personal learning and growth opportunities. Work-life balance is a little tilted towards work but only because people enjoy what they are doing and choose to spend extra time on it.