Great location, in the middle of a busy area and 2 mins from metro station as well as a 24 hour 2-floor supermarket. Incredibly clean throughout and is very well kept. Basic kitchen utensils and tools available, but you won't be staying in much with all the local tapas bars.
It is worth noting that this is not a place to stay if you like to have the option to spend a long time indoors, the natural lighting is intermittent, however there is good wifi and TV so depends on your requirements to be indoors. Also do not stay here if you are looking for peace and calmt, it is in middle of a very busy local area and backs onto other apartments so this apartment is best used as a really a nice base between outdoor activities or have pre-drinks before dinner (if you're not in a tapas bar, which you will be).
Naza is a great host, I also met hey boyfriend Ramon who was so friendly, they left us to it, but I could feel that if we needed them they would be there in a heartbeat.
Great stay! Enjoy Madrid!