To be fair, I don't believe I have ever heard anyone suggest that an all in one water cooler is good for a silent system.
I am in the exact opposite situation and I do happen do agree with them.
I hate that every single review of self-contained water coolers insist of reviewing the kits "as sold" with the included fans, which more often than not are sub par. No mentions of push-pull configuration, no tests with 3rd party fans. The forums are filled with people asking "which are the best fans for Hxx" and there are countless of charts and reviews of fans (noise/temp ratio).
Pair the kit with a push-pull configuration using Noctua fans with ULNA or Corsair's SP Quiet edition (or countless other sollutions) and the cooling and temperatures tell an entirely different story. My H80 is the quietest thing in my rig and the temperatures are pretty good as well (while overclocking).
I have hopes for CM Seidon since many mention how quiet the pump is, while being more powerful than the competition.
Another issue with the review: I don't mind Db measurements on an open test bench, but I find temperature measurements on open test bench entirely irrelevant. All temperature measurements should be done in a closed case, since this is how it will be used in most cases.
Anyway - this is my first post here
Love the work you guys do on this site. But as mentioned before, don't just review stuff "as sold". Try to see the potential beyond. I had the same reaction reading your Nanoxia Deep Silence review. Use more silent fans in that case and its an "silentpc enthusiast" wet dream
PS - would love to see a review of Artic Accelero Hybrid (http://www.arctic.ac/en/p/cooling/vga/569/accelero-hybrid.html?c=2182
). I have one on my GTX580 in a push-pull with 2 corsair sp120 quiet edition and its dead silent with extremely good temperatures (way better than the phantom 2x90 fans it had before).