If I don't land backseat, this boot is a dream. If I do, it's my worst nightmare.
If fit properly, this boot controls your skis really well. It isn't the lightest, but it's definitely not the heaviest. I think the padded heel is a great idea and landing-to-flat impacts are much less painful, as I have recently discovered. The main problem with this boot is the rear shin bang I receive. On two occasions I have landed extremely backseat on a park booter, and as a result, my calves become very painfully bruised, and remain so for a few days. When riding with this, I receive almost unbearable pain to the back of my leg with even the slightest backwards lean. I believe that this is due to the lack of padding between the back of the leg and the shell of the boot. The liner isn't very thick, so the result of landing backseat can be very painful. I am working on getting some extra padding put between the liner and my shell, although they fit very seamlessly together so I think I will be hard to slip something in there.
This boot is sexy, there is no doubt. Sleek and white, it's definitely one of the better looking boots out there. I'm fine with the four buckle design, although I can't really comment on how it compares to other numbers of buckles. The "Rossignol" and "Scratch" decals wore away within a week of use, not that that is a very bad thing though.
I got these boots for about $450 dollars, and depending if I can fix this rear leg pain issue, they will be worth it or a waste of money.
The flex of this boot is really good, and the skis respond well to it. It can be adjusted from soft setting to hard setting at the back of the boot, or anywhere in between. I keep it all the way on soft, and it's great for park and powder riding. (Even the soft setting isn't overly soft.)
So far, I have had only one problem with the beefiness of these boots. One of the upper buckles is jammed a little bit, but it still serves its purpose it just takes a little more effort to move.