Don't just install it and leave it alone for a year, new security bugs are found every day. Just because your web site is secure today does not mean that it will be secure tomorrow. Do they do anything to enhance security or are they merely another snooping device. Some of the new security tools display the information in a way that's easy to understand and report. When it comes to computer security, reports work.
Management really understands reports.
They like graphs and pictures. Not because they are young at heart, they have a million things to do. They want to be able to take a look at the information and be able to understand it in a few minutes. One of the big problems with security is that management does not understand what they need to protect and how much they should spend on it. You may want to check out some of them.