the way we ski has changed so much over the last 20 years, that boot has not changed at all.
The amount of forward lean it has is ridiculous, in the 80's through mid 90's that was helpfull because we had to drive the knee to turn the skis, with shaped skis now, you don't do that and a more upright stance is better, especially for freeride and park skiing. Alot of my customers as well as some of my friends who ski in the boot find the forward lean to be way too much, with some of them it even caused chronic pain in their calfs and achilies.
Instead of forward lean what we need now is lateral stability. Something that full tilts / flexions, don't have enough of. Compare them to any top freeride boot interms of lateral stiffness and they don't even regester on the charts. This is not to important in park skiing however.
Another problem is the cables instead of buckles. Cables do a very poor job of spreading the preasure evenly across the foot and instead you get tight spots on the top of the instep (which cuts off circulation to the fore foot and toes) as well as the shin.
The plastic they use is a joke, it is so soft that the heel and toe lugs on the boot (the part the binding interacts with) just wears away quite rapidly. Combine this with the fact that the lugs are effectively replaceable and you get a short life time out of the boot.
Don't get me wrong the three piece design is great and there is a solid concept behind it, but it needs to be updated and improved for 21'st century skiing. If you want to try a three piece boot try out one of the krypton series, those are some really good boots if they work with your feet.
that was copy and pasted from a pm I sent on the topic a few weeks ago.