Tracer covers the technical safeguards listed in the AusCERT and CERT checklists and a whole lot more, and it does it in less than 30 minutes on most systems. Getting the same coverage by using COPS and TIGER and a host of other tools and then manually checking the things they miss takes more than a day.
Tracer does something that other tools don't do. Instead of just telling you about your problems, it tells you how to fix them. Instead of looking at man pages for hours and sending email to everyone you know, you just follow the directions to repair most of the most common problems.
Tracer is more thorough in more ways than other tools. It covers more configuration settings than COPS, it covers a better selection of guessable passwords than Crack, it covers more of interdependencies than Tiger, and it covers topics that none of these tools even look at.