I am trying kerio now and quite happy with it. i find it very user friendly and it doesn't block good sites. I like the hips and nips feature. i don't get any slow downs or internet slow downs so quite hpappyt with it now. i am using the latest version and i wont use any previous version i always use the latest lol. wat does kerio have that no other firewall has and that makes kerio a good firewall? how often does kerio update its program once a yr or once every few months? any word on a 4.3? how many ppl here are using kerio 4.2 and a really happy. and any comments why u use kerio and no other firewall?