I haven't had this breed but NO dog is born aggressive they are made and trained aggressive, in other words it will probably depend on how old it is where and how it was raised. You will also have to bring it around other dogs and people all ages to get it use to being around yound children etc. and pets. You might also want to obedeince train it because a big dog and a breed that is known to be aggressive needs all the TLC and training it can get. I am not sure if this is a smart breed that learns fast and loves to please, because i have never had a pit or a boxer so it might take time. If this dog has been raised with or around other poeple or animals it should be fine. You just really have to take the time to train it.... I wish i could help you more...but i don't know much about the breed... I have three dogs two chihuahua's and a doberman pinscher and they love each other and everyone so it just depends on how it is raised. My friend has a American Pit Bull Terrior and he is so sweet loves all animals and people so its just how you rais and train it. GOOD LUCK I hope someone that has had this breed or something close comes a long and helps you...because i am not sure if this is what you're looking for.