This is a massive chunk of metal, which makes fitting it a challenge - you need to support it while you screw it to the backplate, you can't let it 'wave in the wind' from one or two screws. However, once fitted, it'll cool practically any CPU you can buy, with very little noise. It is VERY TALL though, so make sure your case is wide enough to take it .. I mean I've seen smaller complete (itx) PCs than this heatsink.
I was unimpressed with the thermal paste provided (too solid to spread properly) but I had plenty of my own so it wasn't an issue.