We have had a wonderful time in Amsterdam. We were very happy to stay with Klaas's family. The room was really clean, tidy and comfortable! Klaas's family were very nice, and they made us feel at home :)
The location was great ! The transportation was very convenient for going to the airport or to the central of the city. The neighborhood was quite and beautiful. The food in the nearby supermarket and restaurants was cheap and in good quality.
We highly recommend you to stay with Klaas if you are going to Amsterdam :)