NSPro economical. And UST-PRo2 very commercial. I don't know about the support of NS-PRO. But UST pro is good support site. My vote goes to UST-pro2. Because I only have UST-PRO2 box. Big headache the first you installed but very cozy ones you run it correctly. As said "No Pain, No Glory" Go forward UST-PRO2 TEAM!