I am interested in ESET HIPS now. I saw a review that was not as thourough as reviews you do, but I see the potential. Maybe your review will seal the deal.
By the way; I was thinking that OA was Comodo, but now I see it is ESET. I don't usually get that kind of stuff mixed up..
When you set "policy based mode" and test ESET HIPS, throw some really nasty stuff at it and use plenty of malicious .exe samples. That is if you don't mind. I am really interested now.