I am a fan of Keen shoes.  I wear an 8.5 and purchased this in a 9.  I wish I had gone a whole size larger.  My toes are almost to the top of shoe with thin socks.  It is fine but I cannot wear thicker socks.  With that said, I have worn these in 25degree weather and my feet stayed warm.  So maybe thicker socks are not necessary.
The back of the shoe rides high and rubs against the back of the tibia.  This may ease when shoes are broken in.
The faux fur is only around the opening of shoe and shoe does not have a furry lining.
Shoe is insulated and cushioned.
Tread is great for snowy weather.
Shoe is snug getting on but ample space for foot once in.
Just make sure you order at least a half or full size bigger.

BTW my favorite keen sandal is Naples- Great for every day and travel.  Naples may look a bit clunky but it feels so good - it's worth it.
It does not matter how many shoes I take on vacation - these sandals seem to be the only ones  I wear.