It seems to be a popular enough choice
We are using Eset in the business, which is fine
I was using Intego in the past, as they have a good version for OSX
Ultimately as long as it updates regularly enough and doesn't cause you massive headaches there probably isn't a massive difference between most of them
I know I personally didn't like some of the Windows ones back when I had a Windows desktop as the software got very bloated with lots of extra features that I didn't really want or need.