I think the board itself is cool. I appreciate that you put it up here for us to look at. I mistakenly thought you were asking for our feelings/thoughts about the board, so I gave mine.
In looking at a mobo I try to look at what could be a problem for a DAW, so in that respect I am intentionally critical because if there are issues wouldn't you want to know beforehand? Yes, the USB 3.1 looks like an awesome addition.The PCI card slots are nice for those that need them.
I have had conflicts with certain onboard audio setups. I've also had some that never had any trouble. My most recent issue was more with win 10 changing my audio drivers. I would start my computer and it would show only my onboard audio. I needed to reinitiate my drivers for my audio interface. Granted this is more a problem with win10, but some systems seem to be more prone to these kinds of problems...so I was curious how hard it would be to bypass the audio on this mobo. The only way to know that would be to build it and try it or see if anyone else has.
If you like it and don't mind betting the farm on it, it's probably as good as a half dozen others as something to start with. Really nice for those who have PCI cards they don't want to part with and who want to use something besides an Intel cpu.