My dogs didn't do well with it at all. Prince outweighs Angel by about two pounds. He is my social dog - thinks everyone was put on this earth to pet him. Well, he loves people but he's not real fond of other dogs.
Angel is much more reserved than Prince (at least out in publice). She tends to walk behind me and has a really bad habit of just stopping and laying down especially if something scares her. I've always thought that was strange - shouldn't she try to run away if she's scared?
Anyhow, we spent the entire walk with Prince trying to go one way and poor Angel getting jerked around behind him.
I'll try again once the weather gets better. I would love to be able to use it, especially when we go to places like PetsMart.