Pros: Good temperatures, silent, solid performance, easy installation
Their initial release quite a while back didn't have the straight forward installation as the ones you have nowadays.
When I replaced my prong broken (my fault) Arctic cooler, I bought the same one - however this time it was the Rev2 and it was updated with a better installation process.
I have to say I'm quite happy with the cooler and have always recommended it.
It does the cooling job very well, but more so very quietly.
Ask any PC builder that's been on a budget, and they most likely will recommend you this cooler. There is a reason behind it. Its performance, its price and more so its silent treatment makes it hard to NOT recommend to anybody and everybody.
I love this cooler personally and will vouch for it.