I work for the company. While the comment is accurate about the $7 a month, we would like to correct the record since the service gives a big price discount for a yearly subscription ($55). We think Cocoon is not just a service to protect against Malware etc. but is very focused in giving people back their privacy on the Web. A proxy server is just one of the values, how about cookies left on our server, not on your computer, or the fact that all your meta data is encrypted on our server (if you want) and available to you on any computer loaded with a cocoon client. If you think you have all these things covered great. However, maybe some one in your family like my older relatives can use the product. I have loaded it on their machines and now I don't have to constantly run over to their house to fix their computers.
However, if price is an issue for you no matter, we really appreciate the discussion of how to make the Internet safer more enjoyable place. If you haven't fully explored all the values of cocoon take a minute to look at the service. Of course we thank you.