The Mendota traffic leash was recommended by a trainer so I ordered one. I use it in combination with a prong collar with amazing results....the dog is always close to me, lacks runway to rip my arm off when she sees one of her many squirrelfriends, and a simple upward motion on the leash puts the dog into a sit without a verbal command. The quality is great - thick cord, comfortable grip and robust metal hardware. The only issue I have is with that hardware: when my dog shakes (full body shake), the hardware releases from the ring on the collar. Thankfully, we also use a secondary strap, so the dog does not suddenly run free, but this is a bit of an annoyance. I suggest a heavier spring in the hardware.