In fact, it was so low maintenance that I lost my SSH key for the master node and I had to reprovision the entire cluster. Took about 90 mins including the time spent updating my docs. If it was critical I could have got that down to 15 mins tops.
20€/mo for a k8s cluster using k3s, exclusively on ARM, 3 nodes 1 master, some storage, and a load balancer with automatic dns on cloudflare.