Nothing in particular. I've been using SmartShield for almost 2 years now and haven't had any issues so far. The product is fairly easy to use and has a very intuitive interface that helps new users get up and running quickly with no problems at all. It's not like other antivirus products out there where you cannot figure it out yourself if something went wrong or not. If you have Windows OS, SmartShield is a great choice for endpoint security. I'm sure you will find it simple and straight forward to use. We're protected from viruses, malware and spyware attacks.