That is the best place where you can be in Madrid, everywhere going by walk, and subway is near (but better explore area by walk, then you will see sweet architecture and places with delicious food). It's very safe, even at night. Apartment was very clean, modern and beautifyl . Carlos is the best host I ever had, very fast with responding, generous, and very helpful. He welcomed me with a lot food, sweets, that was more then I expected. He is hospitable, and he always take care if you need something. I really reccomend that place because it's commfortable, has everything that you need (even more), but if you need something, I'm sure that Carlos will be very helpful! I hope that you will spend your time as good as I had in that place! :)