I come from a background of using Checkpoint firewalls and a little bit of Cisco ASA's, and one thing that helped me out a great deal was being able to see in real-time, was the traffic as it passed through the firewall. Many times I needed to open additional ports, or just see what ports were being used to make a rule more granular, and I would setup an access-list or run a fwmonitor command, and be able to see what traffic was passing, or being blocked. I think this is what Untangle needs.
It is nice to be able to use the AD Connector and use the domain user accounts, but I havnt seen a way to look at a log to see what a specific user is connecting to, or to see a list of what everyone is connecting to and who that user is. All I see are IP addresses and that is not always very helpful, or can take a long time to track down, if at all.
Perhaps there is a way to do this through the command line console, and if so, please point me in the right direction; but if not, I think this is something that needs to be added and will be very helpful.
Also, with regards to the firewall, being able to make groups and applying those groups to rules would be helpful as well. Much better than having to make multiple rules of the same access.