I have been buying the orthoheel brand for years and love them.  I have bought two pair that are Vionic, they are not nearly as comfortable and it seems as though one shoe in has straps that are to tight on one side.  The glue on one strap can be seen pulling loose.  I will not buy the Vionic brand again.  They have a little heel and one pair is slippery on tile. The insole /foot bed is not as comfortable or supportive.