Gloria's apartment is a good place to stay if you will only be in Madrid to sleep.
The apartment was very clean and had everything you needed for a city trip Gloria was very quick in replying to my messages. Even though she doesn't n speak English, we managed pretty well by using the Airbnb app that allows you to use Google Translate when sending/receiving a message. In summer the room will be pretty warm since it is located on the top floor of an apartment building, but luckily Gloria has airconditioning. However, if you want to benefit from the airconditioning you need to leave the door between your room and Gloria's room open, which is a bit uncomfortable. However, the nice breeze of the airconditioning was very nice!