I’ve been using PC-Cillin for over a decade on more than a dozen systems that are running 24/7 on a WAN with zero problems. That is 876,000 on-line hours with no viruses or ad-ware attacks. It is an excellent product.
I take that back... it is actually more than a million on-line hours with no problems at my company.
Something that works in an IT environment, where knowledgeable people control and/or limit access is a far cry from SOHO, not to mention joe homeowner.
I have mostly SOHO and Residential clients, and I can guarantee that any Norton box that hits my bench will have trojans running with Norton completely unawares. McAfee is only slightly better, With PCCillin next in line for likely compromise.
Is it better than the other two? Unquestionably so. But it cannot stand in the shade of the real ones.
I too have been using PC-Cillin for a long time. Mine is only on a few computers used by me and other family members. I have been happy with it until recently. After installing 2007 I had problems which I was able to resolve with the help of Trend Micro. After installing 2008 I have been having more problems and am trying to get help. As with most programs each new version tries to take over more of the computer. So far, among other problems, PC-Cillin tells me that I can’t run other programs that I have been running for years.