I like that it is easy to use,it does not leave any trace of files after cleaning up my computer. There are other programs out there which do more than this program but for me bleachbit is enough because i am not really tech savvy so using an app was easier then trying to search for things online or go through tutorials when needed. If you have no real need for privacy,then just stick with windows defender for now.I am able to clean all unnecessary data from my pc at once without having to worry if some file will get deleted accidentally.