In the world of competitive cycling, deep-section carbon wheels are ubiquitous. Road races, time trials and the front end of Continental sportives (even the hilliest) are dominated by hoops with a 50mm-plus profile and made from the black stuff
Coming from a track and crit background I look for fast, edgy wheels and the Souls fit the bill. Good stability at speed gives you the confidence in corners and out-of-the-saddle sprints. They may be too harsh for some, though.