Excellent build quality, tremendous performance, comprehensive packaging with everything you will need. Installation requires patience and careful work. This is not an issue with the cooler, but rather a result of its high performance, which requires proper installation. In an i7 box where before installation it reached 50 degrees at idle, after installation I overclock it by +10% and push it with video rendering (cpu ~80-90%) and it never goes above 31 degrees, and the fan always works smoothly. In other words, the passive heat dissipation is so good that the fan doesn't even need to work. Super-silent, I have no words. A+++++