Our datacenter uses two 320's in an active/passive cluster. The RED appliance was introduced exactly as designed....well done guys.
Extremely simple to extend resources to remote sites, with iron fist management as a default, and easy to loosen up internal and/or external access as desired.
As another user has posted, we noticed that an auditor can add a RED appliance, known issue to be addressed.
We have no need for bridging or managing VLAN traffic, so we didn't notice some of the issues others have reported.
Someone expressed the desire to edit the definition of the devices (i.e. change red01 and red02 to Team-North and Team-South). We strongly agree this would be desirable.
Looks like a few minor tweaks and you have a win/win product.
-Derek