Arne was very helpful. Let us borrow two umbrellas and his power supply to charge our phones. It was very nice to have his kitchen when we come back hungry. His bathroom was nice. We only saw him once but our communication was great. If you stay with him, please make sure that you communicate with him for your own benefit while in Amsterdam. Also, make sure you understand the public transportation schedule when you plan to come back late or leave early. His apartment is safe and convenient because the groceries and restaurant downstairs. Love that the train is there and the bus runs at 3am!! Have fun!