I love the style and "spring" concept, while I was able to get it on my foot with little trouble, the seam across the top of the foot, the heel and the rim of the shaft immediately gave me issues and had I worn for more than two minutes I'd had have the skin rubbed raw.  I own about 17 pair of UGGS, always a size 7,  with zero issue.  I ordered a 7 in this boot, it felt like a 6.5 but am sure the 8 would have been too large.  Returning and sticking with the classic short that is wool lined.