I was looking for fast charging for iPhones in my house, but this charging cable is fine. I found it charges at the same rate as a regular iPhone charger. The cord itself is pretty durable, and because of its length, I've carried it around different houses. I haven't found that the weighted ball has made a significant difference in my life, but it can be adjusted, which is nice. Overall I like this cable, it's long and strong. I just wanted it to be a speed boost (if I'm not asking too much!)