RHEL 7 and using zsh as default shell for root

Is there any known issue if I switch my root user to zsh from bash starting with RHEL/CentOS 7?

I have tried this with a CentOS 7 installation and have not seen any adverse effects thus far but I was curious if anyone else has any experience on this. My main reason is quite much making some admin work faster with utilizing some of the autocompletion scripting that is available for zsh via suitable rc files (e.g. http://grml.org/zsh/).