Well first of all, my gf is allergic and he doesn’t shed and he has short hair so he doesn’t set her off. Second of all, because I won’t trip over him, he doesn’t require 3+ hours of exercise (1-2 will be fine when he’s older, he’s only doing 1 hour now). They are a nanny breed and even if he decided to hurt someone or me (he never will) I am 110kg and 6ft so I can control him and he stands no chance against me.
Obviously if you were 60kg I wouldn’t recommend a dog that gets to your size unless you train them daily and have experience. I don’t have experience (my gf does, particularly with staffy’s, Rottweiler and bullnastiff cross), but I train him for 30 mins to an hour a day and he’s better than most dogs out there.
What I liked about the breed is that whenever I met them they would wag their tail and greet everyone and everything and I never ran into a “bad one”, so I like their temperament and their size as I won’t squash them if I lay on them by accident. He’s not as big as I want to get, but I thought I’d start small as I want mastiffs and larger breeds of dogs. If you want one either be physically able to control it or be experienced.
Above all else, always train them even if you have a rat cross breed and you can easily overpower them and that’s your excuse for allowing them to be aggressive/untrained, then that’s on you as a bad owner (not saying you do this in particular) I believe people shouldn’t have a dog at that point.