Positive.
Doing a reservation with just half a day of anticipation was only possible because Andrea was super efficient when answering my messages and setting up the apartment.
The location is very good, many bars, pubs and restaurants nearby, plus metro station and buses for an easy access.
The apartment is fine, potentially much better. Really nice decoration, spacious rooms. Unfortunately there are some "details" that I cannot let unmentioned. Lots of broken stuff (cupboard doors, drawers, shelves, windows don't close, wc's water kept running with no way to block it, and some other little things); by being at the ground floor, the windows facing the building's patio are quite annoying as everyone can see inside... So you are pushed to keep the blinds closed the whole day.
Even though it's not mandatory, there were no coffee, no water, no napkins, no mermelade, none of the usual cooking stuff that you wouldn't buy for a 3-days stay. No shampoo, nor soap, and they only left two rolls of toilet paper. And a bed made out of two mattresses put together might be pretty uncomfortable.
On the other hand, it is a big plus to have a small washing machine.
All in all, it was a good experience. But the service can easily be improved.