16 of us stayed at Marco's house. It was perfect for us. There was a large living/dining communal area. We were made to feel extremely welcome on our arrival and they were very flexible with our arrival and departure times. The house was spotlessly clean with beds made and towels for all 16 of us. The neighbourhood was very nice and the house is right next to trams which go everywhere we wanted to go in Amsterdam.
I would definitely recommend staying here!
Great great hosts!