This place is amazing. A huge carriage house in the backyard of the host's house. Upstairs is the bedroom with a cozy bathroom. Downstairs you got a kitchen and a big living room. The internet was a bit slow, an extra router in the place should easily resolve this.
The area is amazing as well, so many cool little shops and restaurants in the (very affluent) neighborhood. Just one tram ride away from the city of Rotterdam.