Gabriel has a great apartment right on the Singel canal above the flower market and in the middle of everything. The place was clean, filled with sunlight and had all that you would need for stay in the city. The shower had good water pressure, especially for being on the top floor of an old canal house. As for sleeping arrangements, there are two singles pushed together in the main bedroom in the back of the apartment and a very comfortable pullout couch that sleeps two in the living area facing the canal.
Gabriel and his family were very helpful, offering advice, tips and a map of the city. They were also very accommodating allowing us to drop off our luggage before checkin and Gabriel met us for checkout, insisting he help with all our luggage down the stairs. If we needed something, his daughter was there in a few minutes (she lives in the building). Overall a very nice family and a great place to stay for an authentic visit to Amsterdam!