Hey thanks! So we evaluated a bunch of different orchestrator options when we were first thinking about Redspread, and Kubernetes was opinionated in a way we liked the best. Google's been running containers in production for a decade now, so a lot of their learnings and best practices are baked into Kube. This article does a pretty good job of laying out the pros/cons of different orchestrators: http://code.haleby.se/2016/02/12/why-we-chose-kubernetes/