NG Firewall

Vorteile: Support is some of the best I've ever used, very responsive and knowledgable about advanced networking and their product in general, even at T1 support. I love that it can be installed on your own hardware or even a VM if you're feeling fancy. The features of the free version are great foa SOHO and the paid versions are relatively inexpensive if you'd like or need additional features or protection. The UI is intuitive and the oly problem I've had with them is when there's a hardware failure (not often, but at my peak I was managing upwards of 100 of them).

Nachteile: I'm not a huge fan of their pricing model for SMBs. It's easy to be in the "in-between" and requres a lot of overhead; one must exclude MAC addresses of "bypassed devices" (think printers and the like) that will literally bypass the firewall, or they must pay for the higher license tier. Typically licenses like this are per user, seat, etc. - not per mac address.

Vorteile: This is one of the opensource UTM out there. I used this version for some time. Free version works as expected with certain services are limited. Setup is comparatively easier than other similar opensource UTM. In some areas Untangle has an edge over pfSense, ClearOS etc.

Nachteile: I like to see a lower prices for the paid version.