Nothing, just doesn't have QoS implimented properly and I don't feel like fux0ring around with it to get it working. I can, but I'll just wait till the new version comes out before I try Vonage.

Mainly I need to be able to reinstall it quickly if something were to happen, hard drive crash, PSU changes lifestyle and becomes a firecracker, etc... I need to be able to reinstall it and have it going in less than 1 hour without having to reconfig everything, apply patches and all that.