Base could do with some lapping
The extreme volacno 12's perforamnce is far better than stock and almost as good as a thermalright sp-800 the kit is comeplte with all the extras you could want short of a mirror finish on the underside...
As far as installation goes the intructions are well written and the cooler itself should have no problems with almost all motherbaords as the size of the cooler is well within acceptable limits.
Although at full speed the fan is just as extreme in terms of sound and airflow, those large 3 fan blades work well with the cooler and after tweaking with the fan speed controllers, you can easily make it quiet to your liking and still get great performance.
I thouroughly recommend this product for anyone who wants flexible socket A cooling in a single package.