I don't have any problems with my feet, but my husband does. Also, he only wears tennis shoes when he's not at work, and didn't even own a pair of sandals. Knowing WDW was coming up, and knowing I thought he should have some comfortable sandals (for the trip as well as for his costume at MNNSHP), I bought some Earth Shoe sandals at Wal Mart in his size.
He swore he would never wear sandals, but he LOVES these! I remember earth shoes when we were kids and I had a very comfortable pair back then.
These were $15. They are leather, completely SOFT, padded all over, and he wears these almost all of the time.
They have a sculpted insole, but it's SOFT. . .flexible, they're really high quality and an unbelievable price--which is really why I bought them. Knowing his feelings about sandals, I didin't want to spend a lot for shoes that were uncomfortable or that he hated just because they were sandals. But, he LOVES these, and he's very picky about shoes. His tennis shoes are expensive, his shoes/boots he wears at work or when we go out are high quality. These are just a great buy, and he couldn't be happier about them.