Poor placement of PCI-e slots.
the placement is Kinda OK IMO - looks like the blue pci-e x16 will be used for gfx cards - so there's enough spacing between 2x gfx slots - it's suitable for those who will only use 2x gfx cards in SLI/CF without any other internal pci-e cards and so far this one look like the most cheapest and VFM X79 mobo