I go by JSKY.
At one of the forums where I moderate at, I was going through a list of recommended Software when I came across a link for Comodo.
So I stopped by and read a while at the forums here. One of the post about ZA vs Comodo caught my eye.
So I had to try it out. Having run ZA for many years, I am impressed.
I am so impressed with this firewall that I replaced the links on my site from ZA to Comodo. I will highly recommend this firewall to anyone.