I have had CB installed at the family computer for about 2 years. If your circumstances call for parental controls, CB is worth the money for the app and the filter maintenance. The filter, updated periodically, is a key feature that is not provided by the OS. When an ok site happens to be blocked, that is fine with me, as it gives our little users a reminder that CB is on guard. And of course, no filter is total. Schedule of access is very easily set up or modified. The app is very solid. My advice is, don't be tempted to get by with something less.