This is a great apartment. It is located in a safe neighborhood, the New Pijp ("Pipe"), outside the city center, with nice cafés and restaurants within walking distance. There is a cheap Aldi supermarket right across the street. I rented a bike and could ride to the museums in 7 minutes, and to the center of historic Amsterdam in 15 (otherwise the trams and the new subway will get you there quickly also).
The first floor apartment faces a church on one side, and a courtyard on the other. It was very clean and comfortable, with nice light. The kitchen has everything you need, and an espresso machine! The shower is great. The wifi is fast. The bed comfortable. There was even a bottle of wine upon arrival. Everything was perfect.
Communication with Marien and Sitske was flawless. Sitske welcomed me and was very helpful. Marien responded quickly to text messages. I thank them both for being great hosts.
I hope to stay in this apartment again.