I received a pair of these for Christmas a year ago and absolutely love them.  They are well-made, with a sturdy sole that can be worn both indoors and outside.  Mine have been put through a lot of use and they still look new.  Although I would have given my pair a 5-star rating, my daughter got a pair last week and hers seems to be leaving little clumps of lambswool all over the house.  We think that it's coming from inside the slipper and hope that this will subside soon. Hence the 4-star rating.  All in all, these slippers may be a bit costly, but I can tell that they are going to last for years to come.
A great gift for someone or yourself!