I haven't tried this one but something similar- I was so excited but it was a fail. These controllers can be hard/damaging on the lights (for example). While convenient to monitor temp, I was concerned about my beardie having a seizure it cut on/off so much. It taught me I could lower the wattage, but it was also damaging on the bulb, and we all know that we want the most out of our lights-
The concept seems good but I would be a little leery.
Also, the fact that reviews weren't flowing/available all over as I thought they would be...for me that's a little concerning. Positive or negative, it's usually not hard to find MULTIPLE reviews on reptile products unless I just overlooked it-
You could always try it and return it if you aren't satisfied- just buy it from a reputable source. Remember, at the end of the day, it's what you want to do!