Welcome to BPO! I'm owned by 2 Saints, an almost 2 year old male and an almost 10 month old female.
What is it really like living with a saint?... You know about the drool and the shedding. My male is clingy, he follows me from room to room and appears to be offended if I don't let him in the bathroom with me. haha. He is easily excited and puppyish at times (although he's finally starting to mature and mellow out now) and can be stubborn and pushy. He is also a bit territorial if someone he doesn't know is in our yard. He super cuddly and loving with his family but he's not overly affectionate with strangers. They can pet him, but he has a 'I could care less kind of attitude' unless it's kids then he's in his glory. My little 2 year old nephew hangs off of him and hugs him. He has knocked the little ones over though with his tail or his butt. He truly does not realize his size. But Bubba was also not raised with very young children. My son was 8 when we brought Bubba home.
My female, Lola is much more independant. But equally loving. She much calmer and more aware of her size. She is much more gentle with young kids, kinda motherly.
I'd say they were very sensitive as pups mentally, but take the poking, fur pulling and ear tugging from my nephews in stride.
As for dominance Bubba did test me and my son at one point. I believe he was around 10 months old. Pushing my son around, ignoring commands, refusing to move. Never any growling, showing teeth or anything like that. We upped the obedience and he hasen't tried it since. Lola is very submissive with people, so no dominance issue at all from her.
They do sleep a fair bit, I find that the hotter it is the more they sleep. They love the air conditioning.
Hopefully I make sense, and I didn't ramble on aimlessly.. I'm a little doped up on Tylenol cold and flu at the moment.