Antonio his apartment is perfect for couples looking for a stay in central Madrid. You have all you need and then some at walking distance. The apartment is very well equiped and has a great A/C, which is a big plus during the boiling hot summer months. Antonio is a great host, very responsive, proactive and always ready to help.
While there is a sofa bed available to accomodate two additional people, please take into account that the street at night can be quite noisy for those sleeping on the couch.
All in all a great experience for us, I definitely recommend this place and its host!