Hey guy's I'm new thought i'd say high, basically i'm gonna say i've owned a Golden retriever, and a English mastiff x from a shelter. I'm pretty big for a guy 6"3 220lbs, and don't fear dog's much. I know this breed requires consistent training, and is in a league of it's own, rottweiler's are first time dog's when you consider a presa. I've talked to a breeder, and wanted to know what to expect. Anyone here own one? I have a male golden retriever, and am looking to get a male presa canario, my dog is neutered, and i may not have the most experience, but am willing to train this dog a lot! I will be dedicated, and keep him and stay consistent with training. I know these guys can have dog aggression problems, as i know that these dog's can be trouble once another dog starts a fight with em. Thanks for reading, hoping someone can help me out.