I dig the ability to cross into remote file systems transparently (much like PowerShell). Running "df -h //devwinserver1/c$" is cool, as is the ability to clean up cruft when a Nagios disk alert goes off, all from the comfort of my bash shell.

Plus, with Xwin running, I can utilize cluster SSH to make managing Unix servers a bit less painful from my Windows machine (corporate standard image I have no control over).