Pros
Transparency on all levels (salary brackets, announcements, changes on company levels). AMA (ask me anything) sessions with the core members who answer everyone's questions. You have a potential chance to shape the processes and drive the changes. High work culture. Values are respected. I feel cared for. I know I can speak up on any topic I want to and I'll be listened up. Various career paths and ways of expanding your skills and knowledge. Periodic salary reviews. Community events/parties.
Kontras
If you need a space/hub to work at different place than your apartment/house then it might be challenging to find sth in your city. (Netguru closed a half of its offices last year.) If you love working remotely and don't need an office space then it's a great company to cooperate with.