Pros: Not much pain to install, performs well, maintenance free...
Cons: Could have been made to perform better and takes even less space with the pump.
It does perform well, but just not as well as the premium air coolers or the real liquid coolers.
I've seen/heard users said having 1-3 degrees drop with push/pull fans setup (even replacing the stock fan). But I've never done it as there isn't enough space to install another fan in my NZXT Gamma Classic Mid-Tower. But there are ways to workaround that though.
I didn't follow Corsair's recommendation to install the fan to pull fresh air in, but just push air out due to available space in my mid tower. Again, there is a way to workaround that too.
It's pretty much maintenance free except the fan and the rad needed to be cleaned every once a while to maintain optimal temps.
I've replaced the stock TIM (Shin Etsu) with IC Diamond 7 ($15 for a small tube ) after installing my replacement mobo from ASUS. I saw at best 1 degree Celsius drop in idle temp... Oh well.