Is that the one from Buildzoid where the 2 MSI boards were the best? Asus has a B350 Strix board coming soon that looks to be good (waiting to see if the VRM is the same as the Prime x370 Pro). The MSI B350 Gaming Pro Carbon is $135 - The Asrock X370 Killer SLI/ac is the same price right now (an extra $10 off at Newegg) and the x370 Pro is $150.
It's making it really hard to choose. I want a good B350 for a cheapish 6 core build, but if another $20 or so would get me an x370? Last time I went looking I grabbed a Crosshair 6 Hero - you know, if I'm grabbing an x370, I might as well grab a good one

. Almost grabbed a Taichi, now that they appear to be in stock, but I don't know if I want to go to the $200 range again. I'd like to try and save some cash for Threadripper