Our group of 16 people stayed at Isabel's place. Checkin was not easy at all. Isabel send her mother who couldn't speak a word in English so our communication was very bad. It is not her mothers fault but Isabels - she did not say a word about not knowing English. She was on a phone during checkin and hardly speak English as well. I really don't have a problem with people now knowing English but her attitude was not polite, not friendly at all.
However, the place is very big and it was perfect for our group. Her house was very well equipped. Kitchen was extremely well equipped, parking was free in front of the house. We had a great time at her house, the only issue we had during our stay was communication during our checkin / checkout. Overall, we would recommend this place to groups.