For a one-night stopover in Madrid, I chose this apartment for (1) its location between Plaza Mayor and Atocha and (2) its price. I didn't go with a hostel like I did last time because I knew I needed a good night's sleep. In other words, all I wanted was a well-located, cheap place to rest my head, so I didn't have many other expectations. All that said, María blew me away with her kindness and hospitality, showing me around the apartment personally, sharing a little bit about herself, putting up with my crummy Spanish, and giving me great recommendations for a light dinner. Her apartment, too, was everything I wanted, plus the bonus of letting me get to know the Lavapies neighborhood a little bit. I was sad I couldn't stay longer!
As for the apartment itself, the bedroom is very simple--clean, small bed and a massive set of shelves to hang and store clothes. No window, but that kept the room dark and quiet enough to sleep really well. Great! María also allowed me full use of the kitchen, including access to coffee, tea, fruit, etc.
I definitely would consider staying here again next time!