See other review; I have purchased a number of them because they are great for casual and at-home wear.  Need minimal>no break-in time, and yes they are like walking on a cloud - or maybe a piece of foam rubber because that's what the sole is.  Easy to slip on and off, but I don't have a problem with the heel slipping when I walk.  I have noted that they are the shoe that thinks its a slipper, and that's how they feel - I love them and recommend them highly.