I researched a warm short boot in preparation for a snow weekend, then a really cold snap hit So. Cal.  We aren't used to cold and don't have terrific indoor heating - it's there, but it's not cozy.  After living in 58 degree temperatures indoors for a week, I have to say this was one of the best unexpected purchases I've made in a long time.  Perfect length, very comfy, they broke in right away and after wearing them almost nonstop since I got them, I don't know how I ever lived without them.  True to size, I wear them with socks. Plus, they fit my budget.  I'm sure the Ugg boots are plusher, but these are amazing, so I'll never need to know how wonderful Uggs are.