Marco is a very sweet pit mix. He is great with all of our kids (although I imagine he may be annoyed by a rambunctious kiddo who has yet to figure out 'gentle' and climbs and jumps on him excessively). Marco sleeps with our 12 year old, and adores our 5 month old often lying on the floor with him, and is very gentle. Marco did live with our other dog (who was small, male and very submissive), but has not done well when my family or friends has brought their dogs into our house. He's always at our side, and incredibly loyal. Marco does have some health issues. A skin condition which does require medication, as well as tumors (we've not had any testing done to determine if they are cancerous or not). He's a very mild temperament and stays in our yard for the most part, but we lived on about 60 acres and he did tend to roam when the weather was nice.