I switched to Nixos after reading a lot about it and eventually switched back to arch because I didn’t like how hacky everything felt. On the surface it seems really clean because of the central configuration file and the reproducible nature of the whole thing, but in the rare case something doesn’t go as planned, it’s hard to know how to do anything about it. Basically everything that would have been a configuration issue for you to fix, is now a bug. Also, I found no easy way to install software that isn’t in nixpkgs (which is rare, but happens).