Summary: Instructions a little bit unhelpful regarding the fan pin connections, but once setup wow. Found video tutorials online maybe they need to point the manual at them. Starts up sounds like a jet engine but after boot silent as a mouse. i do not even know if my pc is actually running [obviously together with the other components i bought to go with this]. CPU temp runs at about 18-25 degrees C depending on how hot it is in my house.
Summary: Overall I like everything about this setup except the fans. It was very easy to get going and is a nice, simple compromise between air cooling and going full-custom liquid. The only thing I would suggest changing are the fans - they're higher RPM versions of Corsair's SP120s (model SP120L for these ones), but without the rubber isolation blocks in the corners or the trim rings.
Pros: Efficient, keeps everything nice and cool, don't have to deal with a massive air cooled heat sink, simple to install.
Cons: Fans are ridiculously loud with the default fan curve at load. Setting the curve to quiet mode in the Corsair Link2 software helps, but then they don't move much air., Also, the Link2 software lacks polish somewhat. The functionality is there, but they could use to put a little more development time into making it smoother and more intuitive.