I had the same reaction my first year. I found the NixOS documentation to be very poor and the lack of a single set of best practices (e.g., imperative, declarative, home config, flakes) to be frustrating.
I switched a couple devices to Guix and was at first encouraged by their much better docs, but the lack of features and battle testing has been a problem with longer use.
I've mostly been happy to go back to NixOS thanks to LLMs. Even a year ago, AI was very good at updating Nix configs and fixing any errors. Ideally Nix would have better docs and a more intuitive unified config system, but LLMs have made it usable and the best solution for now.
I switched a couple devices to Guix and was at first encouraged by their much better docs, but the lack of features and battle testing has been a problem with longer use.
I've mostly been happy to go back to NixOS thanks to LLMs. Even a year ago, AI was very good at updating Nix configs and fixing any errors. Ideally Nix would have better docs and a more intuitive unified config system, but LLMs have made it usable and the best solution for now.