My husband an I had a great time at Petra's apartment. Petra is a very nice hostess, she welcomed us in person to explain everything and brought us some beverages. Petra was very flexible when we didn't know exactly at what time we would arrive in Amsterdam, she replied quickly to any messages I sent.
The apartment is bright and spacious, it was clean and exactly as described. There is a fridge, coffee maker, water cooker and also a microwave available, so it is possible to make your own breakfast or a simple diner/lunch (there is a Lidl shop just around the corner with long opening hours, which we found very convenient to buy drinks or breakfast). The entrance is a bit narrow and the stairs are quite steep, but it wasn't a problem for us. The area is quiet, but it is easy to get to the center by tram or by walking. We happily recommend Petra as a hostess and Petra's apartment!