Pros
Oura is a fast growing company with a great product. They have a large and growing user base that is passionate about the product and there seems to be a continual stream of exciting new developments as it gains more and more traction. The company has a great culture with people who respect and value each other, and are eager to collaborate toward shared goals. I've been amazed at how infrequently I sense anyone feeling territorial or reluctant to take and share ideas freely across all aspects of the product. Oura's people are kind and easy going, our meetings are a great balance of focused/professional while leaving room for goofing off and keeping things light. We have a close knit team that is also very welcoming to newcomers, and I continually hear from our new employees how comfortable they feel and how easy they find it to gel with the team.
Cons
Being divided across Finland and San Francisco as the two primary offices, there are cases where you will need to field early calls in order to collaborate with a Finnish colleague (or late calls if you are based in Finland and collaborating with SF). This is becoming a smaller issue as Oura fills some gaps in both locations to limit how much cross-continental collaboration is necessary.