Pros: Cools 1.3V CPU 24/7 even at 700-900RPM silently , Noctua warranty , NT-H1 paste comes with it
Cons: Fan colors , lack of PWM for stock fans , pricey , huge
I get 60°C temps on Core 2 and 53-55°C for the rest after running Rosetta@Home/ POEM@Home / Folding@Home 24/7 on offset voltage 1.3V for my i5 CPU and that's with fans on low noise.
The fans are SSO bearing, which are glorified/modified sleeve bearings, which also happen to lack PWM.
It comes with NT-H1 paste which is one of the best on the market besides Artic MX-4, so that's savings on money spent to buy paste. It also comes with a Phillips screwdriver.
The only real downside is the size. If you run memory with tumors tall heatsinks on them you may not be able to fit the memory under the NF-P12 fan.
edit: At the time of writing NF-P12 goes for about $17 , NF-P14 FLX ~$20