These shoes are crazy comfortable right out of the box, they don't take forever to break in and they wear really well. I love them and wear them every day!

EDIT: Well, I had to knock two stars off for durability. While these are fantastically comfortable- a bit over a year since buying them the leather has completely split from the rubber all up the side of one of them. I do tend to wear them a lot- in the beginning almost daily and now maybe once a week, but I think a slip-on shoe that I paid almost a hundred dollars for should be able to hold up to more than a years worth of trips to the office and the grocery store.