[Q] BusyBox Installing and Uninstalling topic

Hello,

I'm thinking of installing BusyBox on my Nexus 7. The device is rooted but before I go through with it I have a few questions about it.
Is it safe to install without having a NANDroid backup or custom recovery?
Will it be possible to uninstall without wiping the device?
What is the best app to install it? Stephen (Stericson)'s BusyBox or JRummy Ppa Inc.'s BusyBox installer?

Thanks.