I've been following this thread for a long time, but finally signed up and figured it's time to contribute. I received my Terraminer IV yesterday, and my order was placed early November. So far it is performing very well. It crashed once last night after being powered up for about three hours, and I lost one of the boards today. It recovered quickly both times after a quick reboot. As far as hashing goes, it has gotten as low as 1.2-1.3Th/s. It has gotten as high as 2.06 Th/s, and stayed there for a few minutes. Overall it seems to be averaging 1.6-1.7 Th/s.