Interesting but I haven&#x27;t seen any killer feature yet that makes me want to get accustomed to this shell. Command level completion for arguments has existed in zsh, aliases being a sort of dictionary is kind of interesting but not too useful (just some familiar syntactic sugar). Mutliline input isn&#x27;t new, csh can do it, bash can do it, so can zsh. Admittedly the ability to duck type and evaluate numerical expressions with &quot;let&quot; is kind of nice but nothing too special. Regexes for globbing files might be a new one, certainly a useful one that I&#x27;d otherwise be writing special awk or python to handle.