It is fast, does not slow down the system, and protects my Mac from virus threats. And the price is right.
So far Intego Support has been outstanding. I had a minor issue with the preferences panel and they responded within a few hours of my email with a link to the fix.
The netupdate portion will check for new versions and virus defs,but needs to be able to automatically download and apply. I am sure that will be corrected soon.
Overall I would very much recommend this product.
BCA