I think the casing design matters to suppress the noise level coming from the cooler. Also, the placement of the cooler, like, if it's placed in the bottomest part in casing, the noise can be minimized instead of placing it on the side window.
I own a couple of 1156 rigs and i have a 212+ in one and yes the fan could be better it's a little louder then i like but much better then stock.
I'm comparing it to my MUX-120 that has two fans on it and they are very quiet.
You could always buy some they're Thermalright X-Silent 120mm fans nice looking, braided black cables,20db,1200 rpm and i bought mine for $7 each in Canada.