Look no further! We were only in Madrid for 3 nights and the flat was perfect for our needs in a short stay. The location couldn't be better - for the first 48 hours we barely walked more than 500 metres from the flat (I'm not kidding) yet we had seen plenty (Plaza Major, San Miguel Market) and we got a good feel for the lovely La Latina neighbourhood when wandering the streets. The Royal Palace and gardens were also only 15 minute walk, so the location meant it was an easy/relaxing way to be a tourist.
Delic in Plaza Paja is the perfect place for breakfast in the sun watching the world go by and El Viajero at the bottom of the road has a quaint rooftop bar that was amazing for soaking in the evening sun.
We had lunch one afternoon with the balcony doors open, listening to the sounds from the square below and enjoying the sun (common theme here). There are so many nice bars and restaurants nearby and you will want to go to them all!
Nice shower, clean and good decor.
The only negative is that the drainage can smell - this was solved quite easily by opening a couple of the balcony doors, so I would only call that a minor problem. I would happily stay there again. Lovely place.