I just started to install nix and my first impression is the opposite of terrible. The way it describes what it will do in detail, before doing it, I think is _excellent_. Of course, I have not started using nix yet but to me this shows some attention to detail that developers appreciate and that most other tools don't bother with. I am hopeful I will like it.
Funny you say that, because the installer is about the only thing that is helpful like that. Everything else from there is basically "what do you mean you didn't read the entirety of the official manual, and the deprecated wiki, and the unofficial wiki, and the other wiki, and Discourse, and IRC, and random blog posts, and just learn to read undocumented inconsistent idiosyncratic source code already!?"
The installer is absolutely first rate, but I would strongly recommend asking for help at discourse.nixos.org as soon as you start getting stuck (which will definitely happen, probably rather early).
