Honestly as with all dogs it all depends on the dog and it's envronment. If the Papillion is from parents with good temperment it should have a good temperment as long as it is treated properly. Sometimes dogs can start off with a good temperment but because of abuse or neglect it's personality can change. My friend has a papillion who is a complete sweetie but because of something that happened with a child he no longer likes kids, and just recently I got a papillion who I'm currently fostering but if things work out he'll be mine, anyhoo he's a complete sweetie as well but he's a timid little thing. So it really does vary from dog to dog, most of the paps that I've seen though are very sweet natured dogs of course most of them think they're big dogs, but there's nothing wrong with that.