My favorite feature that wasn't mentioned is completions for `kill`. For example, in bash I would have to `ps -ef | grep command_I_ran` then `kill -9 process_id_of_command_I_ran`. Bonus points if you can do that in one command! In zsh, you only need to do `kill -9 partial_command_i_ran[tab]` and it will complete it for you. Also, !$[tab] and the like. Also, you can set the theme to random to get a surprise every new window.