If I may chime in.
It’s better for the more technical savvy ones of us. It’s more hands on, and not as modern look and feel.
Discussion
Gotcha
I ran umbrel very early on it was fine experience but felt start 9 needed some love, switched couple of years back and never left
I'm planning on switching from Umbrel soon.
I would like more customisation and control over my node.
It’s a step in that direction unsure if it gets that deep. I’d recommend you take Quick Look through the docs . https://docs.start9.com/