We had a great stay with Elmar, he was very welcoming and friendly. The treats on our bed were a very nice welcome to Amsterdam and the Dutch. He wrote a list of things to go and see and do which was really helpful throughout our stay. Very hospitable. Sarah loved the reading chair.
An added extra that would be useful for girls would be a mirror in the bedroom.
All in all it was a pleasant stay, the bikes made things really easy and would recommend Elmar's place for your stay in Amsterdam :)