Pros
Smart, friendly and international team. Positive vibes + people-orientation. The team is growing it is exciting to be part of the first milestones. Shaping / influencing the product, culture and the company's success is possible. Visionary product + topics to work on, i.e. AI, machine learning. Some nice benefits and perks + yearly hackathons and even team retreats.
Cons
Not much so far. All is pretty early stage so some office equipment is still missing. And no office dog yet... ;-)