phredwrote a review of Marker Kingpin 13 AT Binding on December 30, 2018
Familiarity: I've used it several times
I bought these bindings to go with some wider skis (105 waist) that I ski inbounds with. They perform pretty much like my downhill bindings and skis when I am inbounds, while still giving decent performance for ascending steep backcountry slopes using the ascenders. One nice feature is that you can get matching crampons, for when those skins just aren't quite keeping you moving forward. My only complaint is that I like to occasionally use my Dynafit bindings in Tele mode for when there is mixed up and down terrain. This is not recommended for the Kingpin for unspecified reasons. Locking and unlocking is a bit more work with these than with the Dynafits, so it is a little frustrating.
That said, it is less likely that I will do rolling terrain with this setup anyway, and they are great for what they do.