I have had these bindings for three seasons now and they have worked flawlessly so far. I have them mounted on my Powder skis and the power transfer to the wider ski is excellent, I generally don't have problems with pre-releasing, the exception being with excessive upward pressure in the toe (I can feel them start to give a little when I try to pull my ski out of deep Sierra powder, but have had no issues since moving to Utah).
These bindings are slightly heavier than jesters, they feel very similar to 2014 Jester Pros weight wise, which is why I recommend them more highly for burly powder and big mountain set ups, but they can perform very well in the park. The weight might become noticeable if you put them on a really light park specific ski, e.g. Line mastermind, K2 Sight, Armada El Reys; but, they would be excellent for an all mountain park ski, like a Line Chronic or K2 Recoil.