I bought these in black patent in an emergency - my black heels broke and I needed a replacement ASAP.  They were uncomfortable at first - the patent synthetic was snug, but after breaking them in for a day, they quickly became very comfortable.  I can wear them all day with no discomfort.  I bought the black leather as well and those were all day shoes right out of the box.  I can walk for blocks in these shoes (both pairs now, but I could walk for blocks even on day one with the black leather ones) with no issues.  My feet are a bit wide around the bottom of my toes (not sure what that area is called, maybe the toe box?) and these are comfortable.  A lot of times shoes are tight there, but these aren't.  I did notice some heel slip in the first few minutes after I put on the black patent pair for the first two or three wears, but that went away after the shoe molded to my foot.  In addition to comfort, this is a good looking shoe.  It's great for work and looks good with skirts and dresses.