I had been an Eset user since version 2.5, beta tested for Eset Smart Security on V3 where I got a free license and ported it to version 4 -I started using Eset Smart Security- regularly. After a ton of problems with it's firewall and the SSL protocol filtering -which never worked right- and the fact that I use Opera to read my mails -Opera has M2 built in- and Eset doesn't work with it I ditched it.
Being used to a light and fast AV I was forced to change, and I changed to MSE having read that it was light. Big Lie.
Used version 1 for a while 'till I got tired of the slowdowns, tried the Beta of version 2 on my laptop, same deal..
Now after looking to Avast! free as a recommendation from a friend I'm a happy soon to be customer of Avast Internet Security.
Very light and simple. No problems with the firewall, no slowdowns or performance impact on my system and the Sandbox is an extra bonus worth the money.
Hey even the Mail Shield and AntiSpam work with Opera.
What more can you ask for.
Give it a try, you won't regret it.
Martin.-