We (a couple with a 2-year-old son) stayed at Kamiel's apartment for 5 days. Kamiel's place is a cozy apartment in a nice neighbourhood with many restaurants, cafés and shops. Walking distance to Prinsengracht (Anne Frank House) and Vondelpark. A tram stop (several lines) is just outside the door.
Kamiel was very helpful and gave us valuable tips about Amsterdam. He also had a crib for our son to sleep in. The staircase up to the apartment is steep and narrow. The apartment itself was well kept, clean and the bed was comfortable. If we return to Amsterdam, we would gladly stay here again!