The birkenstock shoes are great for someone with foot problems.  I have arthritis in the toes, as well as plantar fasciitis.  With birkenstocks, the pain is literally non existent.  Can't say enough good about them. They are not compatible with icy streets however.  Wish the bottoms were more gripping to prevent extreme slipping on icy surfaces.  I previously owned a pair of birkenstock sandals, which I wore for 15 - 20 years.  Needless to say, they are a very durable shoe.  I'm in the process of ordering another sandal.