I've been using these boots for 2 backcountry seasons and they're awesome. Super comfy for hiking dirt, rocks and snow, skinning and crampons. Also stiff enough for steep and variable skiing conditions. Just hiked Mt Shasta for the first time, longest highest climb yet and not a single hot spot.
My only trouble with them is getting the bottom 2nd buckle just right for the ski down. If it's not in perfect balance, when I flex forward the 2nd buckle comes undone. Seems like a design flaw but they may have fixed it since.
Overall, I'd buy them again.