I enjoyed staying at Vanesa's place in Madrid. The apartment was within walking distance of the centre of Madrid and only 5 minutes from Atocha train station, if you are looking to take day trips.
Although Vanesa does not speak English (and I do not speak Spanish), we had no problem communicating and she was incredibly responsive while I was staying in Madrid. I was sharing the apartment with one other person, but given that I had my own bedroom and bathroom we did not interact much.
My flight was delayed coming to Madrid and I did not arrive at the apartment until 1:00am. I was grateful that I had no problem contacting Vanesa and checking in.
Would stay at Vanesa's place again!