Perfect! This is the adjective that can describe our experience with Beatriz and Madrid.
Her flat is very well located just next to the train station and next to the museum area of Madrid. What we liked a lot was that the building is really typically "madridish", you'll see.
Pictures are accurate, flat is spacious and welcoming.
Kitchen is very very well equipped, you will find everything to cook your meals. There is a dining table in the flat (not seen on the pictures).
Bedroom is very small but cozy, we slept well on the bed.
Bathroom is basically equipped, with everything you would need.

There is a small minus - all the widows (but one, the tiny one) are turned to the corridor, so there is not a lot of natural light and you cannot open the widows to let the air in.

Everything with Beatriz went well so I would warmly recommend the appartement to everybody.