Pros
The main reasons why I joined and I want to stay:
1) Almost no turnover (which is always surprising for a start-up)
2) Good salary and very good additional benefits (commissions, health insurance, Urbansport, events, smartworking..)
3) Product that can help big organisations and bring a real impact
4) Multicultural atmosphere, possibility to speak 3 languages every single day
Cons
I have to be honest, I have no bad points to give for now.