I have had 2 different hosts disable the script because it was causing their server to crash. I have posted this question on their user-supported forum twice and been ignored twice. So, sorry to say I can't recommend though I really wish I could. But from what I have heard, its a great FREE alternative to WebAdverts. I admit that I'm new to CGI and don't know perl, but I've gotten 3 other scripts to work.
Service is poor and the script is difficult to install, clearly.
There are easier scripts to install with better service out there. The scale is 1 - 10, with 1 being poor and 10 being excellent. Please be objective, if everyone receives a 1 or a 10, the ratings aren't very useful. You can view a list of the Top Rated Resources . Do not vote for your own resource or a competitor's.