After reading all the current reviews on these slippers, I thought I would put in my two cents, especially since most of the reviews are "I just bought them" perspective.  I bought my Old Friends almost three years ago - Terry-lined Chestnut.  As can be said with any product, there are bound to be some bad apples, but I did not experience any of the drawbacks or issues I've read here.  After three years all the stitching is still intact, and I did not buy one size larger than my normal size 12 EE for them to fit great.  I have put many miles on these slippers (the soles are showing significant wear) and a great deal of the wear is from hard surface floors and outdoors too - so they haven't been pampered.
The only problem I've experienced is that they do wear out. My lining is starting to wear through. So I will be buying another pair!