About me: 6', 180lbs, 11.5 shoe size, 29.5 in this boot. Wide forefoot, narrow heel. Skied one day in this boot before heat molding. Mostly used with a Fisher Hannibal 94 177mm.
Lots of good info already in reviews here, but I wanted to leave another long term data point. I have been using these boots exclusively the last 12 months, and have skied every one of those months. They have held up very well to all of the rocky, snow covered approach scrambles, as well as cold, long days, and deep pow turns. I appreciate the simplicity of the boot design, which has made, for instance, replacing buckles and such straight forward. I would recommend loctite for critical screws once a season. The tech interface has held up tremendously, as have the soles.
I really like the way these ski, and for my usage, they are downright excellent in terms of balance between weight and performance. Used on steeps, multiday hut to hut trips, and every day touring.
Admittedly, these fit my feet really well, but I have seen these more and more in the backcountry and I believe that is due to the ability to heat mold the liner to a shape that will work with many people's anatomy. If you are looking for a single light boot for backcountry use, this one should be at the top of your list.