Lorenas apartment has the absolut Best apartment! Very nice restaurants just around the corner, a little local market on a nearby square, close to transport etc. Her apartment is super cozy and bright.
We stayed during New Years and it was even super quiet.
If you visit during winter, you might want to consider bringing warm sucks, since it was a bit difficult to get the heeting going and properly warm the apartment, but that seemed like a very common situation for aparments in Madrid :)
Overall super recomendable, and i will for sure ask to stay at Lorenas next time.