ColdFusion Report Builder

I am trying to use CF Report Builder because the client needs a pretty nicely broken out PDF report.    If I could just get it to output the data, it is going to be VERY pretty.    The code in the current HTML report is

<CFIF isdate(primaryreviewerdate)>#val(datediff("d", PrimaryReviewerDate, now()))#<CFELSE>0</CFIF> Days

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This is my translation.  

iif(isdate(query.PrimaryReviewerDate), DateDiff(d, query.PrimaryReviewerDate, getdate()), DE("0 Days"))

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Getting the error:   If the expression is a string, ensure that it is within quotes. Error: iif(isdate(query.PrimaryReviewerDate), DateDiff(d, query.PrimaryReviewerDate, getdate()), DE("0 Days")) is not a valid ColdFusion expression.

Anyone have any ideas??