I bought these because I'm lazy and hate tying shoes and I think I will never go back. They are indistinguishable from normal laces (literally nobody ever notices), and once you tie them tightly, they stay tied for months. I have slipped my shoes on and off many times a day for the past year and they show no signs of coming apart. The only issues I can think of are that they get kind of dirty and creased in places where they have been knotted in the past, but I don't care too much