In case you didn't notice - the board will ship with water cooler mounting bracket:
http://www.tomshardware.com/news/asrock-x99e-itx-ac-mini-itx-motherboard,28831.html
OH WOW! Nice find! Don't think that bracket was mentioned in the initial release info. Looks like a much more solid buy now! Other no quad channel for the DDR4, everything else seems solid. Can't wait until reviews comes out.