[Discombulator]

I think it depends on the details. If your code is simply cleaner, well documented etc, then fully agreed.

If you introduce new dependencies, or the latest free monad transforming framework when there was none, then I’d be wary as well.

[stakhanov]

I don't do "framework" ;-) In fact I'm usually the first to protest when somebody tries to introduce frameworks or other bloatware. And getting excited about algebraic structures is something I got out of my system while doing my PhD. I'm strictly talking: Value-add to the product, albeit at the cost of higher complexity to the extent that it is unavoidable.