for an all mountain ski they are great, for a pure park ski they are still awesome, just dont be expecting to get super techy with them, the 179's measure like 183 or 184, so they are pretty big. if your style is just smooth slower stuff then these skis are perfect, for jumps they are amazing, you dont notice the bigger size or weight on jumps at all, and its super stable for big ass jumps and choppy landings.
if you wanna be doing 270's on to handrails and switchups like crazy this isnt the ideal ski, unless your a pretty big person, its not like they're bad for rails, just something like an invader is way better.
its got a pretty medium flex, plenty stiff enough for big landings, and soft enough to butter super easily.
so if your into jumps more than rails, or just arent that techy, then this ski is great. you can definatly see why its peps park ski.
but if i were you id wait till next years since they are gonna have some rocker, its gonna be such an awesome ski, the kung fujas plus rocker sounds like such a great combo.