Customer Testimonial for Rottweiler Service Dog Training in Gilbert, AZ – Lose The Leash by DogMaster | Feb 25, 2014 | Customer Testimonials Rob is great! In fact he helped me train my service Rottie. I will be taking my new puppy to him as well He gets amazing results very quickly. I highly recommend him to everyone! Kelly R. Mesa, AZ Review posted on our Facebook page.