As a INET technical support person I would say Norton Internet Security ;.... ; NO
Every time Norton does an update to this program we have 100s of customers calling in and they are unable to do anything online. Upon disabling NIS everything works fine. When customer calls Norton they just tell them to call their provider and give them the brush off. This program is not user freindly and we have another 100 or so customers a month calling in with bad virus problems and they are running Norton for their AV. The stats seem to be about 100:1 Norton systems infected to systems running AVG. Another issue is when the subscription runs out some customers experience a multitude of issues including no inet as well as being unable to uninstall NIS.
In a nutshell if you install this product you will eventually be sorry.
Oh yeah and it basically Kills your available system resources as an added bonus.