We use KACE SMA and KACE SDA. We use all but a few of the features that both appliances have to offer. We are in a VM environment with the KACE SMA, however, we use a physical appliance for the SDA.
The ticketing system, real-time inventory, patching, software license, and imaging are commonly used. We also use this for scans - with this and aggressive patching we have been able to pass several outside pen tests. Scripts are used to push out software so the clients don't have to wait and it takes the pressure off of the technicians.