Well maybe it's not the kind of answer you weanted, but I have been hosted by a familly for one season. I was living with a couple who had three children that didn't live at home anymore (30-26-24 of age) They were very nice and I think i was a very easy kid to host. They never wanted me to contribute for anything, but I alwayus did my best to help them ( cleani9ng the kitchen, my room was always neat, always cleaned up^what i was using.)
I lived there for 10 months. It's now been 2 years i don't live there, but we still get in touch a lot. We talk on the phone about twice a month. I go and visit them 2-3 times a year and they come and visit me at leats once a year.
In general i really liked the experience and think that if the familly is really good with the kid, for sure the kid will be very easy to host.