IMO a dependable stack requires a firewall in front of your servers. Sure you can configure software firewalls on all of your servers, but its nice to have an outer wall as well(defense in depth and all that). If hetzner started offering that and private vlan support they would have a really killer offering.
I'm also concerned with the lack of a load balancer. I guess you could do something with a DNS service like Cloudflare, but that seems to be a deal breaker for good uptimes.
