[manigandham]

We use a GKE cluster with dozens of preemptible/spot instances. Great savings for no extra management fee, and with a nice standard kubectl interface for deployments and changes.

VMs are the most reliable thing of any cloud, and often more reliable then their own managed services because of complexity. GKE does live-migration of VMs and Azure/AWS are close to the same thing, so building on that foundation and doing your own "managed" layer via Kubernetes provides a better experience, while also giving you that spot instance discount that you wouldn't get otherwise with PaaS.