I was probably unlucky as none of the previous comments refers it, but there was an unpleasant smell of humidity in the flat during the whole stay (7 days) and a nasty smell of canalization in the bathroom.
Apart from that the flat is ok although very small, which, considering the large sofa, results in no space to move at all. Single glazing so you hear everything from the street, which is fortunately a small one with limited traffic. The bedroom is on the other side, very calm. Isolation is bad, and when the upstairs neighbor has people over, it seems they are in your own flat. There is no proper nor practical space to work in the flat,
The flat was extremely clean and there is clearly an extra effort regarding the stocking: milk, orange juice, butter, bread marmalade, water, single use razors...clearly much above average for that matter.
Good mattress.
The neighborhood is great, of of my favorite in the city.
All in all I recommend it if you only use it to sleep and don't go to bed at 10PM