Generally we really enjoyed our stay!
What we liked about the apartment was the interior, the very comfy bed, the location (very close to the subway and downtown) & neighborhood (quiet & peaceful) and how easy it was to check in and check out independently. Also Frank was very responsive at all times.
We would have preferred to know the following things before booking our stay: 1) the height of the apartment ceiling is rather low, one of us could barely stand in the apartment. same goes for the shower (head), which was not adjustable and thus not easy to use for taller people. 2) the AC is rather loud and keeps the apartment rather cold, at least for European standards. For light sleepers this can be an issue. 3) since it is a basement apartment there were quite a few bugs and spiders around. it obviously depends on the person if that is or is not an issue.