They lasted me four years.  Initially, they felt snug, but after a week or so, the fur liner compacted some, and they felt as comfortable as... ummm... as comfortable as a slipper.  Early on, the liner separated away from the slipper a bit, where it rolls over on the outside.  I sewed it back down with a few baste stitches, and they were good to go.  After about three years of almost daily wear, the suede started separating from the rubber sole on the outside of my left foot, where my toes bend.  But hey... they lasted four years before I replaced them.  Four stars because of the separation issues, but I have no complaints overall.