Has anyone tried out the PL/pgSQL debugger?

Now that we've "announced" (see 
http://www.informationweek.com/news/showArticle.jhtml?articleID=201803375&subSection=News) 
that 8.3 will include a debugger (don't worry, it's a PL/pgSQL debugger 
:-), has anyone actually tried it yet (other than myself and Dave Page)?

I would appreciate any feedback (preferably *before* 8.3 hits the 
streets).  You can find the debugger at: 
http://pgfoundry.org/projects/edb-debugger

Thanks.
            -- Korry