We had a lovely stay here. The apartment was clean, tidy and definitely on the quirky side, having four levels connected by the narrow, winding staircase. We like places that are a bit different, so this was great. Having said that, by the end of our five night stay we were a bit over climbing up to our bedroom each time we forgot something, so be prepared for lots of steps! We also had to leave our luggage on the ground level, as it was too difficult - and possibly unsafe- carrying the big suitcases upstairs.
There were a couple of issues - we found that microwave didn't work (and informed Carmen of it during our stay, so hopefully this will be fixed), and the hair-dryer emitted a terrible burned out smell which made me reluctant to use it. But these were only minor inconveniences. There was a washing machine and a dryer, both of which we appreciated having during the stay. Be warned the spin cycle on the washer is tremendously loud and booms through the house, so don't do what we did, and put a wash on just before going to bed!
The single room is just under a streetlight and the blinds there are very thin and don't block out much of the light. This didn't bother my son much, who was sleeping there, but be aware- I know it would have been an issue if it was my room.