My first CPU block so I don't have anything to really compare it to. But here's what I thought Firstly, the instructions could be better. I ended up installed the block off instinct instead of the manual. Secondly, the block can be installed in any way. No inlet or outlet. This was confusing in the beginning, but they did mention in the manual;near the end after showing the fully assembled block that outlet and inlet don't matter. Thirdly, I have no complaints on its cooling performance. I've overclocked my 3570k to 4.7GHz with a vcore of 1.25 Temps peak @ 40 degrees on a non de-lidded CPU. Can't wait to see how low it goes after I de-lid and add some CLU under the IHS CPU only loop, 240mm(GT 2150),+280mm(Noctua FLX)
Cooling a Phenom 1090T overclocked to 3.9Ghz@1.425V Max temp was 49C. Temp with an Arctic Cooling air cooler hit 58C pretty quickly at 1.38V. Looks fantastic and performs quite well, highly recommended.