The 212EVO is still a perfectly decent cooler with solid performance and decent noise levels. That said, it’s not the gold standard anymore. When I was looking a few months ago, another solid contender was the Cryorig H7:
Thermal pasting isn’t that bad (fairly simple methods, like medium line down the center of the block, are pretty well proven to be just fine):
Installation isn’t that bad. . . if you haven’t already installed the CPU/mobo in your case. If you have, it’s not gonna be much fun doing anything but a stock cooler >.>
Not that I’m speaking from experience or anything.