The ease at which we can configure our servers is incredible! We have been able for years now without any issue or downtime with this product from hthreec as opposed other vendors that are not so easy in configuration but they do provide better support when things go wrong (which rarely happens).
I would like it if you could save your configurations between reboots instead having them reset every time after reboot/shutdown - maybe there should be some kind options settings available? But overall its great software!! Highly recommended by us since day 1. And yes their customer service team always very helpful no matter what questions one has about how something works etc..