The only thing wrong with this product is the optional rubber mounting plugs designed to replace the four mounting screws - they are impossible to get through the fan mounting holes. Apart from that, it's an excellent fan, it's very quiet, it works very well and it's exactly what I needed. Noctua products aren't cheap but the build quality is everything they claim. However I'd rather they left out the useless rubber mounts and didn't pack in extras like the dual fan extension cable that I'm not going to use because - wait for it - I only bought one fan and it's so quiet, there's really no need for it. Instead they could lower the price a little and keep their competitors further at bay. CCL delivered it early and I can't fault them.