Jan is an amazing host and his place is located at a superb location. KNSM island is about 3km away from Central station and is very well connected by tram and bus.
Jan's place is amazing and the view is to die for. A quite place where you can relax at the end of the day.
He gave us tips about local area, food to try and shopping centres around. Fridge was very well stocked too :)
Pick this place and be assured of a great stay in Amsterdam.