I use it since 2007 (I had the older version), and it's simple, since I've never installed in my computer was infected with a virus (2007).
Moreover this new version is more complete when I surf on the internet, near keg internet page, it shows me a logo that tells me if the site is reliable or not, so better visibility!
It really is a very good anti-virus!
PS: I did not before, or with anti ... download on the net, and frankly I still had the virus, still slowed my pc, and from hell ...? ^ _____ ^