Pros: Despite the weary look of the building from outside, the apartment is quite comfortable and spacious. We shared the unit with another family without any issues. The location is very good, having a metro station nearby, the marina 15 minutes walking distance, and the historic city center 10-15 minutes ride.
Cons: What bothered me the most was the host's harassment about the use of air conditioners. I understand that the energy use was not minimal with two families making use of four rooms, but in the peak of summer, I guess it is not reasonable to expect the air conditioners to be turned off. Even though we did our best to minimize the use (e.g. kept the conditioners at relatively high temperatures in the night -mine was set at 26 degrees Celsius-, turned them off during the day when we were out, etc.) we kept receiving warnings about our use, even accompanied with a threat that we'd have to pay extra if we exceeded a certain amount! The existence of air conditioners in the rooms was one of the main reasons why we hired the place -paying about 1600 Euros for a week- in the first place, so we did not appreciate being bothered about this. I also did not enjoy having to wait outside the building at my arrival, as the host did not respond to my messages and calls. It turned out that this was because she was attending the repair guy fixing the gas leakage in the oven, which was also unpleasant to have, but it can happen to anyone, of course. Anyway, for the rest we had a good stay there. I can recommend the place to large families or groups looking for a large place to stay/share.