Overall I like the looks and style of the NV120 PWM CPU cooler. The nickel coating and unique fin design make this an attractive addition to any chassis. The cooler doesn't do all that bad in testing, but I say it's the low CFM production of the fan. This is the coolers limiting factor. While it is a silent solution, with some coolers you have to give up performance for noise levels and this just happens to be one of those coolers.
While the ZEN series allowed for the ability to swap the fans, with the Nirvana it is going to be a challenging mod for those less mechanically inclined. So if performance is a must over silence, this may not be the cooler for you. If you have a stock build or a slightly overclocked rig that can do it on lower voltage, I say go for it. The NV120 PWM can handle its business, just not as well on the extreme end of things. ZEROtherm does state that this cooler can handle over 150W loads and I don't doubt that one bit, I just think it will be out of most buyers "comfort zone".
Availability seems to be prevalent everywhere else except in the USA where this cooler is virtually unavailable at this time. All I can say is that you need to Google shop this cooler for your best deal, as I was seeing prices varying greatly from store to store in both the EU and AU markets. I guess we just have to wait in the U.S. and see where the pricing ends up at more respected E-tailers. The $77 dollar price I feel is way overpriced in my opinion for the results I got with this cooler.