I was a Reebok guy for years. Casual, aerobics, running, it was always Reebok. They were comfortable and cushy and I liked the way they looked. But I always had knee problems that have disappeared with Keen shoes. They are harder initially, but I can stand all day and not have sore knees. I even run in them and don't have sore knees. Just like a soft mattress is maybe not the best for your back, soft shoes are maybe not the best for your feet.