Easy installation. Takes a few sessions to allow ZA to learn what programs you use routinely (by user selectively choosing to always allow). I supplemented my ZoneAlarm Suite with Spy Sweeper, to really protect against spyware, as suggested by a review I read. I would recommend both these products. The only complaint I have with ZA is that you cannot create an online user account if you do not buy directly from Zone labs. This means you would have to type your license key in each time you request support--hence, 4 stars instead of 5.