PC tools anti virus has a nice interface and is fully featured, but it's a massive RAM hog and on my test machine had a tendency to bring browsers to a grinding halt, this happened on Firefox and IE. So as it stands not recommended, I didn't keep it. Looking as Snapfiles reviews indicates I'm not the only one that found this.
The Firewall was OK and quite compact, though somewhat lacking in documentation, which is a pity as it's quite tweakable. I did have problems when using it on an avast! equipped machine as for some reason it couldn't "learn and retain" the details for the avast! update system, no other update/contact software had this problem.