We have switched last year and achieved 45% cost savings. This is mostly because we can now easily run all CPU heavy activity to preemptible nodes if they are a

We have switched last year and achieved 45% cost savings. This is mostly because we can now easily run all CPU heavy activity to preemptible nodes if they are available. It is also much simpler to gracefully scale down the number of nodes/containers outside peak hours. We also no longer have to manage servers. All of this was possible without Kubernetes, but it is so much easier with it. Although admittedly much of the ease of use is due to not having to manage Kubernetes itself – we use Google Kubernetes Engine. I would not want to install or manage a Kuberenetes cluster/master myself. I can recommend managed Kubernetes to anyone that runs many different apps/services.