Almost 4 years since I bought Jaxson and I can honestly say out of mix breeds and 15 Dobermans , Jaxson is the smartest I’ve ever had. House trained within a few days after arrival, commands are quickly learned, and that nose of his….he tracks everything! Most amazing he sniffed out two precancerous skin spots on my scalp that were medically taken care of. I love, love this boy! So now I will purchase a female for I want to keep his line going, via a JJ( Jaxson Junior). He is outstanding!