Shreditor 112s are a sick do it all ski that handles pow well.
I have the 189 now, but also had the 179 last year as a rock ski. The 179 floated my 6'3" 200lb self suprisingly well for being too short (they measure 2cm long, the 179 is about 181cm, and 189 about 191cm)..
My pow skis last year were 191cm Billy Goats and if those were 10/10 for powder, than Id rate the 179 shreditor 112 8.5/10. AKA pretty darn good for being 6mm thinner, 10cm shorter, and a more all mountain orientated shape.