The t.rice wants stick to big, long turns wherever possible. I'm 160 lb and ride the 157 as my deep pow stick in the PNW, and find that it floats well enough in even the wettest, stickiest shitpow that I don't ever have fatigue issues. It's also fast enough in the deep to beat all the low angle runouts we've got here without issue.
On the other hand, it's not really that great in tight trees. The more small, fast turns you have to make, the less happy the trice gets. On low angle pow tree days I definitely prefer going down to the more playful banana magic.
I've been looking at getting a t rice 157 as well and from everything I read that seems to be the case. Great on wide open groomers, great on jumps, and pretty good in pow. Not so great in tight spaces and not playful. I'm 180lbs though so the 157 may be a bit more nimble for me.