Just started using these, so can't say on durability really. I love the bold colors, and the length is great. They definitely quick charge.
EDIT: January 12th, 2 months after purchase. One charger not properly working within a month, didn't think much, it happens. A month later, 2nd cord same thing, metal part too loose to charge, wont charge unless set just so and hope it doesnt move. I remembered I had warranty. And contacted the Seller. After explaining what happened I was sent replacement cords. Great Company to work with. Definitely recommend these chargers