Pros: Efficient cooling, looks, can do push pull if needed, does not interfere with tall ram sinks.
Cons: Plastic backplate, installation.
The installation on the other hand is a pain unless you are going to use the AMD backplate. For intel users I recommend you-tubing the installation (also make sure you install the rubber fan grommets prior to installation or you will be forced to remove the cooler once you are done). The back-plate that comes with this cooler leaves much to be desired, it's plastic instead of steel/carbon. For $49.99 you would expect better. Regardless of the back-plate the end result is phenomenal taking into consideration that it only has 3 heat-pipes compared to other coolers that use 4 and above.
Here are a few numbers I would like to share :
i5 2500k @ 4.5GHz (1.3v) idle hovers between 28-34c (depending on ambient temp).
i5 2500k @ 4.5GHz (1.3v) LOAD (large FFT's) hovers between 66-74c (depending on ambient temp).
i5 2500k @ 1600MHz (.968v) hovers between 24-28c (depending on ambient temp).
My ambient temp normally is between 70-78F, all these tests were done using a Corsair 600T.
When it comes to gaming @ 4.5Ghz it normally sits around 62-65F (@ 4.2Ghz or lower it sits around 55c or lower).
In all this cooler was a great buy, I have no complaints other than the back-plate and the instructions. If you want a nice looking air cooler that rivals most top end coolers and wont break the bank then consider the Dark Knight II, you will not be disappointed.