It seems like you have a choice most of the time between lightweight boots that offer little in the way of support, or big clunky boots that take a year to break in, and are never very comfortable.
This boot is the best of both worlds.
Excellent grip and foot stability, without feeling like you're wearing a cast. The lateral support is the amazing thing about Salomon boots and trail runners. Even with the laces loose, your foot won't rock.
Out of the box, I took these on a long hike, then two consecutive backpack trips, and there was no break-in time. After walking 60+ miles, they still look new. The waterproofing is adequate, and even on hot days, my feet were dry as a bone in the evening, which says something about the breath-ability. I am also impressed with the large toe-box. My toes were never compressed together, and there was plenty of room to flex.
Another plus is that these boots are true to size (depending on the manufacturer, I can wear a 7 to an 8. These are a perfect 7.5).
I would definitely recommend this to anyone looking for a lightweight boot that doesn't want to compromise on support.