Whoops forgot to mention.....if you have a wide foot they may be uncomfortable. Apparently wide feet people find them a little uncomfortable as Asolo cater for the average or medium foot! Otherwise, they will keep your feet and toes toasty warm in VERY cold temperatures.
Granted, they are a little pricey but it beats spending large amounts of cash on expedition boots:-) and it would be a wise purchase as they will last you for a long time so you can do many other climbs in them!
hope this helps