> put a good UX in front of it

It's good as long as everything works out of the box, but it's a nightmare when something doesn't work. Or at least that has been my experience. I'm used to always troubleshoot first when I have any issue, but with Tailscale I decided I'm done trying to fight it, next time something doesn't work I'll just open a ticket and make it the ops team problem.

This is true for all systems that hide a lot of complexity. Apple is great until something doesn't work and you get things like "Error: try again later." A car is great until it doesn't start, and there are numerous reasons that can happen.