Looks like I'll be sticking with my Silver Arrow for a while then. I've been wanting to put an AIO cooler on for ages but hate fan noise!
Thing is I want to rebuild in a smaller case which may be a mare with the SA!
Fan noise isnt really anything to do with the AIO cooler thats more how good the actual fan is and how quiet it is. Plus any sensible person has it connected to a fan controller so you can adjust it to suit your tastes.
I have a NZXT AIO for the CPU and a EVGA Hybrid for my Gigabyte 1080 FE and I've got the window open and I can hardly hear the fans in my case and I have got 5 and two pumps!
Also people who post about this also forget to mention where they put the case. If its on a desk next to them then cause its going to be much louder because its at ear height and going to be difficult to mask. Mine is under the desk bottom right so you have to take into account where you put your case too !