do you honestly and truly NEED to have it?
No, but at the same time you don't truly need a firewall, AV, a time machine, system cleaner, or even the internet (Yes, even the internet. <--People have done just fine in life without the internet from the year the earth was born to the year 1995 when the internet started getting popular)
firewall, AV CTM
It's not need until it saves your butt. and not losing anything important(or in some case priceless) that hasn't been backed up on disc or memory stick
CTM will work fine for most computers, NOT all. If there is a problem, your guaranteed to hear about it on this section of the forum. <--It would be nice to know witch ones that CTM doesn't play nice with (it's only a small percent of them). It's which small percent of them that I'd like to know and should be posted at the download page.