Harald and Edith were great. They let us check in early since it was our first stop off the plane and there were no guests still there. The room and facilities were fantastic, self controlled heating and the bathroom is adorable. The bed was a tad hard on the back when used as a double but still comfortable.
A simple metro ride into centraal station or a longer walk, but rembrandtsplein and Leidseplein are nearby as are a lot of the museums and Vondelpark so you are close to the majority of sights.
Definitely a great place to stay. 10/10 would recommend.