Definitely a good thermostat I have several of them (Colubrid rack, oil filled heater and back up) and I am statisfied with them.

Setting do not change on it's own so if you want to drop temps at night you will have to do it manually.

If you shop around you can also save money http://www.reptilebasics.com/ranco-e...pre-wired.html

Now if you want a thermostat with night drop I would recommend the following http://www.spyderrobotics.com/products/herpstatnd.html