Pittbulls get a lot of bad press because of 2 reasons (IMO). One is the severity of attacks. They have incredible bite strength and tenacity. They can literally rip you to shreds if they attack. Two is crappy owners. Some macho-men think it's cool to own a big viscious dog, so they raise them that way. I love all dog breeds, but have seen a lot of dangerous individual animals (and owners). PBs and rottis dont seem any more likely to be dangerous than most large breeds, but are more dangerous when aggressive than many breeds.
That's a beautiful dog though. I wish I had room for a canine.