I bought this one based so many positive reviews. It installed pretty fast and did super fast screening and it even found virus on my system. I was immediately impressed and went ahead and installed on both my son and daughter's computer. A week later, my daughter started complaining her keyboard not working well. I quickly blamed on bad keyboard. Now I am experience bad keyboard as well. I found out that the s/w is hogging resources so much that my keyboard won't even respond. In fact I am having a hard time typing this review. As far as I am concerning this s/w is a virus itself. I had similar issue with McAfee and now this. I would give a -5 rating if I could.

Awesome battery box! Very well constructed and functional. If I could suggest one thing to improve that would be to include some basic instructions and a mounting clip to keep it in place in the boat. By instructions, I mean that when I press the button to check charge status, it shows all lights then it glows one light at the end so I'm not sure which sequence is correct.