NIST's web Static Analyzer

Has anyone used this?  Comments?

http://zing.ncsl.nist.gov/~webmet/    ( if this doesn't work use 
http://www.itl.nist.gov/lab/seminars/webmet.htm )

The Web Static Analyzer Tool (WebSAT) checks the html of a web page against 
numerous usability guidelines. The output from WebSAT consists of 
identification of potential usability problems which should be investigated 
further through user testing.