I like that it makes you think of all the different ways you can protect your computer and how easy it is to set up alerts for different types of attacks. It's not very user friendly, so be prepared to spend some time learning how to use this tool effectively. Make sure you have someone who knows what they are doing help you set it up. If you can afford it, get the premium version which has many more features than the free version. We've been able to monitor our network and see any issues before they occur, and we're able to alert our users if there's an issue or if it looks like there might be one.