Information On Papillion Dogs?

Hi,i am very interested in getting a Papillon dog.I have read all the info on the internet i can possibly find.But what i really want,is some real owner experiences.The information that only someone who has spent a lot of time with the breed would know.
Things like-
Ease of training when they are pups?
How much energy they have,and how keen they are on walks?
How big are they?(can use another dog breed as a comparison)
How they cope with being left alone in the house for 4-5 hours?
Any other additional information would be brilliant! Thanks for taking the time to read my question.