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.
This isn't too much of a bargain buy for me... since I got this during its introductory stage... oh well... sucker me. 
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. 
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. 
it takes all of 20 extra dollars and a couple hours of tinkering to turn one of these into a full blown kit. some 1/4 tubing a built/bought reservoir and some clamps. im running my 1090 at 4.5ghz at nearly 1.8v (yes madness) it loads under prime in the 49-53*c. so for 100 bucks (h50+tubes+reservoir) you can indeed have a system that will hold its own compared to a very very expensive alternative way of liquid cooling. heck my gtx460 block alone cost as much as the rest of the system. but should be noted: anything more then 1 or 2 blocks after the h50 will kill the pump. i run a h60 w/ a danger den NB cooler with an air cooled GPU on one rig while the other rig runs an H60 with the 460 water cooled and the NB on air. so yes there are some bottlenecks to deal with but hands down dolla fer dolla THE BEST! +rep to op
@ PCEnthusiast85 Thanks for the compliment! I'm waiting for your REP+