I work with a few and think they have lovely personalities, they enjoy human company but, like with any dog but especially the bull breeds, they need early and plenty of socialisation with other dogs to make sure they grow into polite, well mannered dogs. They can be stubborn and they are not for the inexperienced dog owner. A friend of mine has one and he is her first ever dog, she doesn’t mind admitting that in hindsight she should’ve started with an easier breed!
They are intelligent and strong willed so training needs to be consistent and from an early age.
Health wise, all the ones I know suffer from skin problems and, if not socialised from a young age with dogs, people and general life stuff, they can suffer from anxiety which can turn into fear aggression but that should go without saying for any dog.
I’m a fan, I love working with them and find them to be fun and loveable (although the saying “bull in a china shop” springs to mind). I probably wouldn’t choose to have one myself though.