I am looking for advise from experience. Do the Host families have teenagers? I am afraid it sounds like too much time with a family and not enough with peers.
Overall any advise from experience with any program for studying spanish in Spain for my 15 year old rising sophmore son. Safety and positive experience first. Cost is secondary.
I have no experience, but it looks like the company may provide alumni contacts. Have you tried that? http://www.rassias.com/spain
One thing you have to bear in mind is that Spanish families nowadays are small, the birth rate for 2004 was 1.3.