Jim Holland wrote a review of La Sportiva Stratos Evo Alpine Touring Boot on March 19, 2014
Familiarity: I've put it through the wringer
I mostly shared my thoughts in a comment below. I've been skinning and booting up with these boots for a while. I think the designers did a great job. I've found them to be comfortable, reasonably warm, absurdly light (like climbing with a trail running shoe) but also remarkably supportive in ski mode. They ski really well. When skinning up I've found that you don't need as high of a climbing bar - in walk mode these stratos evos articulate unlike any AT or tele boot I've ever owned. I think these boots are unbelievable.