Matt C.wrote a review of La Sportiva Trango TRK GTX Boot - Men's on April 23, 2016
Familiarity: I've used it several times
Fit: True to size
I bought these in a pinch to climb 12,500' Mt. Morrison in the Sierra Nevada during winter when my Nepal Evo's were on loan to a friend. They actually worked well for that class 3 snow climb. I certainly was not frontpointing and wasn't kicking steps either. Slopes were up to 45 at times but snow was soft so it was easy to get purchase with my strap on crampons and these boots. My feet were fairly moist after the 6 hour approach to the base of the climb where we camped. Down camp booties were essential. The next morning they were mostly dry after using them as my pillow (the standard method I use on winter alpine climbs - works great!).
Most of all, these things are really light! I got by with them on a winter climb, but the Trango S EVO's are really the right tool for that job. I am planning on using these to fill the niche between a summer hiking shoe and my Nepal Evo's. 4 season backpacking, 3 season scrambling up class 3 peaks (maybe, might stick to low top approach shoes for this purpose), maybe some shoulder season peak bagging when I expect snow and strap on crampons. In that sense, they are pretty niche. I suspect they would be a perfect backpacking boot for the PNW where rain is always possible and temps are cool. In the Sierra, I am concerned about the gore-tex liner causing my feet to sweat and blister up in summer conditions. Can't comment on that yet.
I wear an 11.5 street size. I wear 45.5 in the Nepal's. I got these in a 45.5 and they fit perfect. They were SO comfortable right out of the box. Just wish they weren't so ugly!