It's not something I'd go for to be honest. I need to have full tinker access :) Most of my servers now have a bunch of custom docker scripts. But it looks good I have to say.
I think I'll roll this out in a VM on my homelab just to play with it and get some ideas.
PS: One thing that's notably missing in their app store is headscale, the only have the official Tailscale service client.
I'd love to see more focus on data portability and guaranteed migration paths. If the OS is truly open, that helps, but the "appliance" model makes people nervous about vendor lock-in even when self-hosting.