Carmen and her mother were really welcoming. They are nice, friendly people and great hosts!
The apartment is at walking distance from the centre (10/15 minutes): perfect location. It is really clean. Carmen provided us with coffee and a snack for breakfast and it is also possible to store some food in a fridge (that is only for guests).
The only downside: the room is on the street side, which also during the night is really busy and noisy; problem solved using earplugs.
All in all I really enjoyed staying at Carmen's apartment and I strongly recommend it!