I had a problem with the first two metal hoses I purchased, but your Customer Service replaced them for me (they also asked me to send back the two defective ones so they could determine why each of them was leaking, albeit from different places.)
I have been using the two replacement hoses for about a month and they are working just fine. I am hoping that they don't develop leaks of any kind because I think that the concept is a very wise one. I would recommend them to your other customers, ...