I spent 5 pleasant weeks in Diego's apartment.
The house is situated next to a 4-lane road, that makes the apartment a bit noisy during rush hours. But it is on the 4th (and last) floor, and the windows keep most of the noise out when they are closed.
It is quite well-equipped for longer stays, perhaps the additon of a microwave and a modern coffee machine could further improve it.
There were plenty of clean towels and bedlinen available.
The overall cleanliness was good, there were just a few minor issues (e.g. a dirty baking tray in the oven on arrival, the fridge and the bathroom cabinet could have done with some cleaning), but nothing major. (I have to add that I have very high standards for cleanliness, and all these might not be an issue for other people).
The apartment had a very nice working corner with a beautiful desk and a comfy chair. With the great wifi it was perfect for teleworking.
Diego was a kind host, who replied promptly to my questions.