Purchased a refurb unit, 2.6, 512, 460 - pretty sweet deal and am quite happy with the unit. I do have one concern though.. Even at completely idle (startup, a few web pages and a few word documents open), I can hear a resting fan sound that is audible at arms length in a quiet room. It's not the sound of the fan at high CPU/GPU usage; rather, it's more like an ambient low-volume fan noise but definitely still noticeable. Do you hear anything from your Mac sitting about arms length away? Speaking with a colleague who owns a 13" TB, he can only hear something if he directly puts his ear about an inch away from the machine. It's definitely a lot more noticeable compared to my previous mid-2015 rMBP that I upgraded from... Bring it in and have Genius take a look?