Summary: I really wanted to like this motherboard- the price is right for all the options you get. Unfortunately, I got a unit with a bad network port. After about a month, my ethernet can't connect unless I manually set the speed to 10Mbps. Even limping along like that, it'll still periodically drops out, requiring a reboot. The support process with ASUS thus far has been tedious (busy signals for my first few calls, then 30m to actually speak with a person).
Summary: Great board! Running 8.1 Currently with screamingly fast boot times. No issues to date and would recommend this board to anyone looking to build anything from a home PC to a starter gamer PC. This is my GFs current MB equipped with i5-4670k, GeForce GTX 770, 8GB HyperX Fury, and Toshiba 256GB Q Series Pro.
Summary: Used in two systems, neither one would be used for gaming. One was with i5 Haswell and the other with a Pentium Haswell. Both computers are running 24/7. Only thing to keep in mind is the number of fan headers, this MB only has two so plan accordingly.
Summary: My experience was pretty much the same as JWink reported earlier. I installed an Intel Core i5-4670 CPU and a kit of Kingston Hyper X Blu 8 GB (2x4GB Modules) 1600MHz DDR3 RAM, an older Radeon HD 5770 graphics board, with Windows 7. The PSU is a Corsair CX Series 500 Watt 80 PLUS Bronze unit. The system (not including monitor) idles at 47W, which is great. Everything worked perfectly, as has always been the case with my Asus builds.