Webroot had an excellent product in SpySweeper.... So good in fact that they didn't need to make wild claims about it and it's "competitors"!
On this box with acouple of small tasks running and a few windows open, KIS is peaking at 3048K... A long way from the 54.06MB that Webroot claims. I haven't tried it yet so I don't know what scanning algorythms it uses, how it interacts with it's environment and and how well it deals with prevention and cure of malware etc. I really do hope that it is as slick as the gloss says and moreover, that it's effective.
Whilst I've recently had a painless experience with Kaspersky support, I've been disillusioned for some time with the way that they've been largely ignoring loyal customers views and sometimes, needs.
When I get a few hours I'll install Webroot on a VM and throw a few things at it.

In reply to a post by Malwaremike:

I do like KIS and don't mind paying for it. Not their crazy price of course, I paid under £20 for three-user licence, £6 each for a year is good value and it has stopped several nasties that I know of.

How did you get it that cheap ?

I paid £26.08 for a 1 PC licence.

Keep your eyes peeled on Amazon and don't forget that a KIS 2010 licence will still work for 2012. A 2009 licence may still be good but I'm not sure about that.

In reply to a post by Malwaremike:

Fair point, how do others find MS Essentials? I do like KIS and don't mind paying for it. Not their crazy price of course, I paid under £20 for three-user licence, £6 each for a year is good value and it has stopped several nasties that I know of.

I cannot believe people are paying for KIS.... Barclays bank offer the software for free (KIS/AV) if you have an account and do internet banking. I have had an account with £1 in it for the last 3 years and get my licence for 3 PC's every year without fail via Barclays bank..

With Norton I buy a cheap New copy for any previous year on eBay. Make sure it is unused. You can even buy an Upgrade version rather than a Full one.

All you need is the Licence Key; you can throw away the CD. It will be accepted for your installed later version.

I expect it will be same with KIS.

Amazon. Sometimes even PC World does deals.

In reply to a post by Anonymous:

I cannot believe people are paying for KIS.... Barclays bank offer the software for free (KIS/AV) if you have an account and do internet banking. I have had an account with £1 in it for the last 3 years and get my licence for 3 PC's every year without fail via Barclays bank..

Yes but I don't bank with Barclays !

In reply to a post by Malwaremike:

Amazon. Sometimes even PC World does deals.

Thanks also thanks to Deadbeat for the Amazon comment.