Bought a Herpstat 2. I wrote questions to Spyder Robotics before deciding which thermostat to buy and I had all my questions answered 2 hours later. I've read nothing but good things about the Herpstat and if you live in place where it can get really cold during the winter like I do, a dual thermostat that can set two different UHCs to two different temps is a must.
The Moonlight function is great, I have a redlight on a lamp plugged into the herpstat and it turns the light on at night with just enough power to make everything in the enclosure visible, but not heat it up. The Herpstat is a great product and would recommend it to anyone who needs a thermostat.