There are lots of people that use CosmicGuard and Path.net through their hosting providers. We have had issues with one of the providers and are trying to get an understanding of peoples opinions. Path.net provides a services where you pay per 1Gbps of clean traffic but it limits you to that 1Gbps even if you have 10Gbps uplink. CosmicGuard for example gives you a 1Gbps of clean traffic but allows you to burst as long as your traffic isn't sustained over that 1Gbps. The other difference would be Firewall rules and access.
We are here to learn and gather opinions.