Javier's apartment is in a pleasant neighbourhood, an easy walk from El Retiro park and Ibiza metro station, on a street with lots of terrace cafes and other interesting shops and services. It's opposite a big hospital, but the upper-floor apartment is at the rear of the building, and is generally quiet and peaceful, with very little disturbance from neighbours or the street (a definite bonus in Madrid, where street life goes on late into the night). The apartment is light-filled, with well-sealed double-glazed windows, block-out exterior roller blinds and aircon units in both the bedroom and living space (we experienced an 8 day heatwave in June, and the aircon was a lifesaver). The apartment is secure (well-bolted) and the building is well-served by a friendly portero and three lifts and a wide stairwell.
The bedroom has a lot of storage, and a comfortable queen-size bed. The sofa bed in the living room is also comfortable, and easy to pull out and push in. The dining room table seats four people comfortably. The bathroom is a reasonable size, the shower is a little awkward to step in and out of (it's in a bathtub) but there's plenty of hot water. The washing machine is easy to use, and you can peg laundry on lines outside the windows, or inside on a rack.
The kitchen - with a decent-sized fridge, dishwasher, microwave, coffee machine and electric stove-top - is fine for basic stuff (breakfast, simple lunch or dinner), but is a bit cramped for two people to operate in easily. With so many bars and restaurants in the vicinity, there's not much temptation to stay at home cooking though if you want to do that, there are a lot of supermarkets and food shops nearby to choose from.
The description of the apartment's facilities is accurate, as are the photos - what you don't appreciate until you arrive is the wide view over the city and, on a clear day, to the hills beyond, the beautiful morning light and luminous sunsets.
Javier was an excellent host. He responded quickly and clearly to messages, was reliable and discreet.
I would recommend Javier's apartment to anyone visiting Madrid, but it works particularly well for a long stay. On a previous visit to Madrid, when my husband and I wanted to hit all the big sights quickly, we stayed in the centre of town - but it's noisier, and busier. To get to the Prado etc from Ibiza, you can walk across the Retiro park, which is lovely but takes about half an hour. The Ibiza metro is a bit out on a limb, but the Madrid metro system is easy to figure out. Otherwise, there are a lot of taxis cruising about, car share companies etc. It's an easy neighbourhood to navigate, and it feels safe.