Best features are its ease-of use as well has being able to set up rules in advance so that it can be easily used by people who don't have much experience using Access Lists (AL) or Network Security Policy Management software such as Cisco ASA ALs. It's not enough easy but still manageable if you're familiarized with some basic commands/tools like "ip" command line utility. I haven't found any other good feature yet compared between this product and others. The only disadvantage we faced was sometimes when users didn't know something about how they should edit their own configuration files manually instead doing things automatically through GUI interface. We've been managing our network security policy very efficiently since implementing ACL manager into work environment and also helping us solve issues related with changing IP addresses without having downtime because of new policies implementation process. I like that it's easy to set up, use, and maintain. It makes managing our network security so much easier than doing everything manually. There are some things we would love to see improved in future releases but nothing major at this time. We're using it primarily as a way to centralize our network policies and make them more easily accessible across multiple locations.