Phil B wrote a review of Scarpa NTN Binding on May 27, 2013
Familiarity: I've put it through the wringer
Great performance when pushing hard in all conditions, which gives you the confidence to push harder. I'm sure the new boot-binding set-up helped me progress my technique.
Release system works when you need it to. I've released 3 or 4 times in the 60-70 days used, at least one of which would've been an ACL injury...
On the down side, they're pretty heavy, and a big financial commitment with new boots & all