Compared to my previous CPU cooler Zalman 9500 I won 20 ° C at rest (Q8400 @ 3GHZ) and the CPU load rises to 30 ° C-35 ° C.
No particular comment on the quality of production if not it is very good it smells reliability.
As against an area for improvement for the next release is the CPU cooler mounting system: it is in fact removing the motherboard and take the "sandwich" to be able to screw the CPU cooler on the latter. Although this mounting system is very solid (the cooler is not likely to detach from the motherboard) we must recognize that it is impractical ...
Finally last point check that your turn has enough space width as the cooler is really big (it goes to 1 cm in my Antec Mini P180)
Apart from that happiness. ^^