I bought a pair of these for my wife for Christmas.  After reading several reviews, I ordered one size larger than her normal shoe size.  They were too small.  I returned them and bought a pair two sizes larger than her normal shoe size.  They fit beautifully.

She loves the comfort, warmth, and looks of these slippers.  The semi-hard sole is great on our tile floors.  I would have given a 5-star rating except for the terrible sizing.