This apartment is in a great location by the Palace and Opera and in easy walking distance of many of the touristy sights. A metro is round the corner if you want to explore further. The San Miguel Market is only 5 minutes away and the choice of restaurants, bars and cafes is plentiful. There are local supermarkets and alimentations so you don't have to go far to pick up what you need.
The apartment was spotlessly clean and really well laid out with the reception rooms on the road side and the bedrooms around the lightwell which made it very peaceful. The beds were very comfortable and we had plenty of pillows and towels. The bedrooms were all spacious as was the living spaces.The kitchen is stocked with everything you could need for a short stay and as there was so much on the doorstep we really only had breakfast and snacks rather than doing any cooking. The lift is handy for taking bags upstairs or if anyone with mobility problems was staying. Plenty of hot water too even when all showers were occupied simultaneaously. Internet worked well and although there was a TV we didn't use it.
The owner Cristina, was great in all her correspondance and incredibly helpful. She speaks brilliant English which was a bonus as our collective Spanish was terrible.
I thoroughly recommend and would definitely come back to stay in this apartment when I next have the opportunity to return to Madrid (if it isn't already booked!).