Padded, responsive, cushy, reliable. Hard to beat Burton bindings. You can adjust them many different ways so they will be even more responsive than they are right out of the box. Easy to adjust the strap length with out tools, the high back can be easily aligned with your back edge. There is cushioning under foot and the straps are nice and soft too. Burton buckles can't be beat for reliability.
After a month or so of riding these, they are too damn soft. Fucking limp and not very responsive. Not great if you are an agressive free rider looking for a binding that will respond quickly.