We arrived to Madrid at Atocha station and caught the metro to Anton Martin metro station, and then had about a 5 minute walk to Plaza de Santa Ana. After arriving at the apartment we made a quick phone call and about 1 minute later Gonzalo (Ramons friend) turned up, showed us in and gave us an excellent run down of the apartment and the local area, including where to eat and drink, and where supermarkets, pharmacies etc. were and ran us through the tips book they have put together (excellent idea).
The location of the accommodation is perfect. Opposite the plaza, you have easy access to excellent restaurants, bars and it is located near most of Madrids major sites. The building is full of character (with a lift. this was a treat after no other places we stayed in Spain and Portugal having lifts). The apartment was spotless and comfortable. There were four of us (2 adults, 2 teenagers) and size was it was perfect and you had everything you needed for a comfortable stay.
You are within easy walking distance of La Latina (Calle Cava Baja), Mayor Plaza, Puerta Del Sol, Retiro Park, Prado Museum, and so much more.
The place is also close to Maestro Churrero that let the coeliacs in the family eat churros.
If we head back to Madrid, we would be happy to stay here again.