Used these bindings for one full day before the bolt at the bottom of the hinge broke at the summit, and I had to limp it down with no heelside edge. Liked the comfort and thought the control was acceptable. Traded up (way up) to Burton C60s, which I much prefer in terms of responsiveness, with similar comfort.
Backcountry's customer service on this was, however, nothing short of super. Near immediate refund, with discounted UPS return. These folks do it right. A first rate retail experience, irrespective of problem with bindng.