Fish is such an underrated shell. They make some very strong, opinionated choices (like ditching POSIX compatibility), and the end result is an extremely nice shell. I've been using it for a bit over a decade now, and still love it.

Fish shell scripting is also extremely pleasant to write, it feels like an ergonomic bash.

There are a few warts, as with any project, but none of them have ever actually ever blocked me from just getting what I wanted done.