It's a pretty good ride still (depending what you need). I tend to run a tiling wm with lots of customization and it's great to just have all these tools and behavior synced everywhere. I build emacs from scratch with lots of packages and special config. I have neovim with all the goodies, firefox installing with the plugins and config I want.

All automatically synced between my machines. I also really pushed myself to learn to maintain nixpkgs. It's been tough, but definitely worth it.

Config, if you want to take a look: https://github.com/pimeys/nixos