The highest mark to this flat goes to its location. In an area with good to high quality restaurants and bars, and few steps from Retiro's park. The flat itself is as beautiful as in the photos and you will receive it perfectly clean. The kitchen is comfortable, though fridge, microwave, oven and whaser machine have each broken parts, that could be easily fixed or renewed.
The flat is noisy but, unless you are very sensitive, it is ok. Also, if you are sensitive to smell, be aware that you will have kitchen (fried) smelling 24/24 due to the restaurants downstairs.
There is iron but not iron board and there is no wardrobe. Overall the flat is comfy and nice and due to its location a great stay is practically granted, even if you may find better quality/price options in the area.
I did not met Lucia and have the impression that she is only the landlady that has hired external services to manage the rental and guests arrivals. So, even if they are correct and in time (at least they were in my case), don't expect them to be very welcoming.
Also, don't expect to find anything in the kitchen, not even the basic items like salt, suggar, oil, etc. If you stay longer and plan to cook you'll need to buy everything.
In summary, I enjoyed the flat and think that overall everyone will do. Still I do not think I would stay at Lucia's flat again.