Overclockers Club published a review on the MSI Z97 XPOWER AC
A quote from the article:
At $379, the Z97 XPOWER AC is at the top of MSI's Z97 overclocking product stack and rightly deserves its place there. The feature set of this board compares favorably with the ROG offerings from ASUS in terms of functionality and just raw potential. Sure you can get one of MSI's other Overclocking or Gaming series boards, but you lose some of the features this board has to offer to save the coin. For the balls-out overclocker, this board can do it all.MSI Z97 XPOWER AC Review @ OCC