I have been using this product since last 7 years. It comes with a cost of per year but for keeping your personal computer virus free I think rate is reasonable. It has a lot functionalities and very huge database. It is easy to install and it never disturbs you in the middle of your important work. It has many functionalities . It has very user friendly GUI and software itself. It provides security from an unknown connection to each damaged file. Services are not required except it requires 4 to 5 megabyte internet per week. And since last seven years I never had any complaint of it in spite of I attach USB drives which are full of viruses.