I am new here and new to snowboarding (only gone twice) but I have the NX2-AT. I tried them out a local shop. It was between the M9 and these. What I liked was I could set it, pop the back latch, step out and when I needed to get back in I just stepped in and locked it. The two times (past 2 weekends) then never needed adjusting. I set it the first time and that was it for the day.
They felt very stiff the first time out. Because I had them a little tight. I adjusted them to be looser (video on Flows site) and they felt much better yet were still secure.