I stayed in David and Marinas place and found it to be generally comfortable, and relatively close to the center. Its small, but cosy. Perfect for one person or a couple(who are willing to be quiet).
The communication with David, and the check in was fine. Very kind and on time.
I knew it was an apartment before booking, but it still didnt prepare me for the sound issues. I could hear the surrounding neighbours very clearly, with simple things such as coughing and clearing their throats. Or if they took drinking glasses out of the cupboard. I could hear people from other apartments talking on their phones and to their roomates. There is a large sound privacy issue, for me at least, and it did not feel very private. Saying that, the neighbours were all very quiet in general. Many people will be fine with this. So im sure its not a problem for everyone. As I was on my own, it was not an issue. But If I was there with a partner, it would not have been advisable. Of course, this is out of David and Marinas control.
Other than that, and a few random strands of hair around the place, the apartment has all the cooking utensils you could need. A big tv, great wifi, and awesome heating which was a good thing as I came from hot Australia, into chilly Madrid.
Thanks for everything, and the late check out, it was very kind of you.