One of the unique things about Kerio Control is that since it is a software firewall, it can be deployed in a virtual environment, which is something I can't do with appliance based firewalls. But the coolest part is now that it is available in OVF format, it is now easier than ever to import into my existing Vmware environment. It isn't necessary to download anything, just copy the URL and paste it into the vSphere client.