Pros: Cheap Cheap Cheap!!! GREAT TEMPS!!
Cons: TIM Application, Stock TIM
If your looking for a cheap cooler for lets say a Sandy Bridge rig and ain't looking for extreme overclocks then this is the one for you!!
4.5ghz for sandybridge shouldn't be a problem with that cooler. Here's an example of what the 212+ can do at 4.7ghz (your results may vary, TIM application and ambient temps):
2500k - http://www.overclock.net/15496849-post5039.html
2600k with Hyper threading - http://www.overclock.net/15236863-post4532.html
One last thing, I did mention that it's not for extreme overclocks, well how about being a little brave and applying some sand paper on that cooler??? Lapping the cooler can a daunting task however it is one that will definitely improve temps!!!
Lapped 212+ - 2500k @ 4.9ghz http://www.overclock.net/14883324-post3678.html
See what I mean???
This little cooler is a beast and one that I recommend for people that are on a budget!!