Ubuntu-Rescue-Remix is one of ten essential Linux Admin Tools
"System Administrators (SAs) need a set of tools with which to manage their often unmanageable systems and environments*. These ten essential Linux administration tools provide excellent support for the weary SA. Those listed aren’t your standard list of tools deemed essential by industry bystanders. These are tools that have proven track records and have stood the test of time in the data center."
Another Ubuntu-related tool they highly recommend is byobu.
In other top-ten lists:
Last April, Ubuntu-Rescue-Remix was mentioned on TechRepublic as one of "10 Linux rescue tools for recovering Linux, Windows, or Mac machines"