Azure Container Service is simply a PaaS-ish offering of Swam, DC/OS, or Kubernetes. It still spins up VMs that you can log into, but handles deployment/provisioning of the product, and makes some assumptions about your use case. It's a great way to push a button and have a "real" deployment of those services to evaluate, especially if your goal is a platform-agnostic target. I work for an Azure-focused cloud consultancy and for any serious production environment we still build out a more custom deployment using a combination of Terraform, Chef, Cloud-Init, CoreOS, etc.