Cooling seems good. I have a mini-ITX build with i7-9770k, no overclocking. I've never seen anything over 70C under high load and it's pretty quiet. 3 stars because the management is pretty bad. Most of the information is there, but it could certainly be better. It can also show the direction of airflow when the fan is on. Installing it was a bit of a chore considering you're trying to keep it from moving and screwing up the paste by balancing it on two screws and tightening through the bars. Eventually, the fan rattled so loudly that I had to attach it to the frame of my suitcase. The fan noise without whistling is very low.