So, I don't really use, or frequently recommend Norton or other assorted Symantec products. (except for Ghost).
However, Norton consumer products have greatly improved in the last few years. The interfaces have been improved and simplified, and the code has been cleaned up and more streamlined.
Problems still happen, but I recommend people use the basic version of the software, since it lacks the firewall. The firewall driver is almost always the cause of problems with security software causing computer problems. At least for what I see of it, which is a lot.
If you hate Norton and vow to never use their products again, I would suggest taking a look at the Norton Power Eraser.. It's a free on-demand anti-malware scanning and removal tool that's pretty useful.