Efficiency in scanning and active protection
Anti spam is a bit of a pain, but it does learn albeit somewhat slowly
I have been using Kapersky for about 7 months now and am delighted with its performance overall. The only thing that I am not all that happy with is the spam filter which is not as good as Mailwasher Pro I think. The overall experience is good though and there is no doubting its efficiency in what it does. I agree with PC Authority's ratings completely and it deserves ats ranking as number one security suite.