Just got these recently and have only used them a couple sidecountry days so far, but they seem like a good choice. The Bent metal high backs are the right flex for me, and the straps are super comfy. The Karakoram interface is a pretty slick design. They ride well, and combined with the karakoram clips, my split is surprisingly solid.
I will say in the cold conditions I was in, some ice built up while traversing on the metal plates, and despite the claims that you don't have to, i did have to scrape them off before transitioning to boarding mode, though it was pretty quick. Also, on one of the bindings, the lever / pins were pretty stiff out of the box, so expect some break in time.