I personally did not enjoy this place, and actually left after 2 nights (had initially booked for 11 nights).
The apartment had many small issues which in isolation would not be a big deal, but put together, just made me feel that the apartment was not cared for.
Additionally, the size of the kitchen where the sofa bed is, is so small that when you open the sofa, you have little room for anything else. Finally, there was no ambience in the place; it felt like a hospital room.
If you are 2 backpackers, looking for a private place to crash for a few nights and will only use the place to shower and sleep, then it will be fine. If you plan to spend time in the apartment, or plan to stay longer, then this might not be for you.
The silver lining is that the hosts were very understanding and responsive, so thank you to them!