We were in Madrid for 6 days, location of the flat is excellent. The flat is very cozy, the neighborhood is great (quiet, with a lot of markets, squares and coffee shops around), and the terrace is perfect in the mornings and in the afternoons!
We had a problem at the beginning because there was no hot water, and after it was fixed it was still lukewarm, not hot. But Rafael gave us the refund for that.
The mattresses are not very comfortable and the cleaning could be better.