I have a PRIMECOOLING 4 Row Core Full Aluminum radiator coming and I am planning on installing a HAYDEN 3647 THERMOSTATIC FAN CONTROL to control the electric fan. The fan is a Flex a lite fan. Not sure of the model. Looking for some feedback on the HAYDEN 3647 because after I ordered it and it arrived I have read some more reviews and now I am second guessing the purchase of the HAYDEN 3647. Some of the reviews were good but most reviews were negative. Please share your feedback on my pending setup.