I've had good luck with a hydrofarm too. The only side note I'd add is make sure you use it with a good uth (like an ultratherm)... Some of the less expensive UTHs can continue to heat even after the thermostat cuts the power, which can lead to temp spikes... I had a zoomed mat that did this even when hooked up to the hydrofarm. I agree though that the hydrofarm is the best lower-cost option out there for controlling a UTH. I've bought some slightly more expensive units ($50 range) that were herp-sepcific that didn't work as well.