It made maintaining my laptop + workstations the "same" a breeze, although it took a bit to learn and settle into something that works for me. It seems today things are easier for newcomers, but Nix Flakes are still "experimental", and thus the documentation on things might seem confusing or misleading sometimes.
I just use them like they are stable and will deal with any breakages later. I doubt any breakage will be too bad and that it'd even affect me.