I have just returned from a lovely to trip to Madrid where I visited the beautiful sights and sampled the tasty food...
Azucena's flat is as seen in the pictures and as described. Clean and spacious enough and obviously newly refurbished. The bathroom is a delight with a very spacious shower with good water pressure. Everything is simple and easy to use.
If you are a light sleeper, however, as am I... the dustbin men come to collect the rubbish every morning very early (between 1-3 am) and are very loud. It bothered me the first 3 nights and after that I kind of got used to it...
The flat is very well located for access into the centre, the easiest route being by bus which you can get right outside the block. It takes 20 minutes to The Prado.
I would advise not to get the underground from the airport though as there are a few changes going up and down lots of stairs and if you have heavy bags, this can be quite tricky. It also takes well over and hour.
Easier to get a bus to Atocha and then another bus from there to the flat. Or a taxi.
Azucena is very friendly and helpful and answered all my questions with good information.