zsh is quite fun to use tbh and it's worth the pain of not having it on some remote boxes IMO (and I'm working on getting most of those on zsh via Ansible)
I certainly get it. Zsh and the like offer some really nice functionality missing from standard bash. However that muscle memory is lost. Zsh etc. certainly cool for your own tinker box. Not good when dealing with lots of disparate systems. I don't even like to use a lot of aliases because of this.
