I've done lots of testing against various viruses, most are zero day viruses in the wild. I simply find that having something like a sandbox that is included in CIS is great if you like to install things that may or may not be harmful and if you surf in places that, well, maybe you shouldn't. I feel no extra load on my system at all with CIS and I would recommend it to anyone really. I still can't believe it's free.
Plus, the firewall that is included in CIS is much better than Windows Firewall, but again, that is just my personal opinion.
|