We had a nice time at Berith's house, she helped us a lot and give us many advices about Amsterdam. She even invited us to her birthday, that was adorable !
About the house, you can't use her kitchen but you have a large room and a clean bathroom shared with the host. You're near the center (10-15min of bus 34)(or bike if you're brave enought !) and it's really quiet. You have your own key so you can go in or out whenever you want.