Nix is wonderful to use for personal workstations & such. I'd suggest if the idea of purely declaring a package as a function of its inputs sounds interesting to you, it's well worth taking time to look into using Nix.

I think in terms of adopting in a team environment.. I don't think it's a good idea for a company to adopt high-cost-high-reward tools at a place without at least 3 developers who know the technology well. (You don't want just 1 dev knowing it; and you want slack in case 1 quits or whatever).