Comment on the city and country where you lived. Spain is fun and easy. There is a balanced approach to life. Liked - food, people, culture. Every weekend was dedicated to exploring the city and country.
Day trips are easy.
I did not travel to other countries. Spain has plenty to do. Please add any other comments that might help a prospective exchange student decide whether to attend your host school. Given the choice between yet one more semester in Ann Arbor and one international experience in Spain, I would go for the exchange program each time. Education is more than just academic study and that is why an exchange program is valuable.