Our little almost 2-year old long haired dachshund HATED putting on his harness his entire life. I always thought he just would never change, little did I realize he just really hates things going over his head. Since he can just step into this harness he actually now runs over to put it on! Also, the ability to use the front clip to prevent him from pulling is wonderful. Hopefully his manners will improve and we'll be able to move him to the back clip soon :)