Hi - there are a number of Zeus customers using our AFM product - get in touch and we can talk. The AFM product is based on a mature web application firewall from a German specialist in web application security, so it has a proven track record with many customers, not just Zeus users.
It is a sophisticated product, but the baseline security and wizards should make configuration fairly straightforward until you need to tune it specifically for your application. We updated the installer with the most recent Zeus release (6.0), making installation much easier than before.
Owen (@zeus.com)