If they rank it better than the EXOS, it has to be pretty good. I'm only marginally worried about the following:
Obviously paid by kingwin.
Radiator size always have big impact. Reason why well constructed swift kit still has limitation.
Now, this is the first site I check for unbiased opinions on items. Sometimes, the reviewer do get cynical but most hardcore's are like that AFAIK
Now, you will notice some kits such as asetek waterchill rating below exos. I don't doubt for a moment having had similar setup before just due to the nature of old waterblock which is nothing to compare to new one. However, this option might be feasable... very very cheap.
You can always change the waterblock to new antiarctica block which will increase performance drastically (top notch block) granted you don't plan to cool other things on line. (I recommend staying away from GPU when artic cooling VGA cooler does such an excellent job).