The place has a perfect location! Soraya and her husband are very nice, and they greeted us personally even though we arrived late.
The only think you should expect is that the apartment is a bit noisy and it is normal consider the location as it is located only a few steps from Plaza Mayor. The noise didn't bother us at all but if you are a light sleeper this might be a problem. Another thing, the smell from people smoking in the restaurants downstairs might come into the flat if you leave the windows open. The windows are well sealed for noise and the apartment is very clean. Also, the elevator works very well which is a plus if you are travelling with quite a bit of luggage as we did.
Soraya was a great host, I asked for a baby bed and she set it up immediately on our arrival! Great place to stay and really the location is unbeatable.