I have the original P180 along with the updated P183. Great cases, especially the P183. With slipstreams and an s-flex for the Scythe Ninja, the thing is inaudible. I can't hear it at all in general apartment noise.
If anyone is debating whether the P183 is worth the price over the other versions, I say yes! Moving the bottom chamber fan to mount in front of the hd cage allows for much better cable management and a lot more room for the PSU.