Sam Ivy K9 and trainer Ryann Dragani worked wonders on my Mastador (Mastiff / Lab mix), Bailey. Being the large dog she is, she was uncontrollable during walks, would be very affectionate towards company (jump on them, sit in their laps, lick excessively, etc) and was very aggressive towards men. Thru this training, my young kids can now walk Bailey, she listens to all her commands and when company is over, she will lay on her bed until she is called for. When out in public, Bailey receives high praises from strangers for her good behavior. I highly recommend this training to anyone having behavioral issues with their dog.