The apartment is good for up to 6 people. Location is great, specially if you arrive by train. Victoria, the owner, is very nice and helpful.
The potential of the place is great but it could - and should - be better explored.
Two big issues: noise and no air conditioning.
It was very hot during our stay and we had to leave the windows opened to reduce the heat. The noise coming from the street was simply so high that nobody could sleep! Cars, bars, drunk people, kids partying... you name it, from 11pm to 4am. At 5:30am the guys at the mercato started to work so the noise resumed. If you are tired after a full walking day, this is your worst nightmare!
I think a little investment in new windows and on an air conditioning would take this apartment to a new level...