I went from bash to zsh to fish.

1. I understood bash. Manual is good, searchable, understandable.
2. I never understood zsh. Manual is split up in several different man pages, very annoying to find what you're looking for. I never ever understood what I was doing, config wise. Just blindly following convoluted how-to's.
3. With fish, I finally understand every aspect of my shell again, and it's like 10x simpler than bash. Can be learned completely within 30 minutes or so.

Highly recommend the switch.

Yes, but "command line editor" is a confusing term. For me it's "get features of a fancy shell in pure bash".

Blesh adds a lot of functionality that makes bash feel + act like a fancier neoshell, while keeping the same syntax. Also includes a pre-exec hook, which vanilla bash notably lacks.

Highly recommend.

yeah, but they did reverse course on ; and vs && to be more POSIX compatible, which is a decision i understand but don’t agree with