It's the lead I use the most! I have a spaniel puppy that attracts *a lot* of attention in public, and as I've come to find, many strangers asume my dog is public property and have the right to interact with him without permission. It's a very frustrating experience, as it has a serious impact on our neutrality training. When he is wearing his lead with "I'm in training, give me space", a good proportion of these people seem to get the message, so I'm really content it helps us educate the others on the proper dog etiquette. Even if my pup is friendly, I'll be seriously considering buying the "Don't approach me, please" lead in the future as well.
The quality and sturdiness is also the best of all of our leads, so I warmly recommended it to other dog owners!