they are very loving, I have had them since I was a kid and could never be without one now, never had 3 at once before though lol mine are gentle with the kids as well, its funny how they just seem to know they need to be more careful with them.
the toilet training can be hard with them, my youngest pup will use paper in the house but wont go outside even on walks, she holds it in until she comes home and does it on the paper lol I hope she grows out of that one

she is in my avatar picture the little black pup, it would be lovely to see some pics of your pup, is he a long or short haired chihuahua?