Tax6132 :
I understand it's main purpose is to cool the CPU but do the fans do a good job not solely in cooling CPU but cooling the system with the two fans it comes with?
I have the H110 GT and it works great. It's not the quietest by any means but it does a great job. The Corsair thermal paste that comes with the AIO cooler is better than a lot of pastes you can buy. It did a much better job than the CM paste I just brought.
And yes, the fans will help with cooling your case. I have my rad installed at the top, so the fans pull the air out of my case and into the room.