I stayed here with my mother and brother on a family trip. Given the limited time in Madrid, we wanted to stay somewhere central to lots of attractions - this apartment couldn’t have been more perfect location-wise! Being walking distance to essentially everything was very special. We loved being near Mercado San Miguel - such an easy way to try a variety of local food in a unique setting, literally right outside the apartment door.
The communication and check-in process was very easy. There was a Facebook messenger app that was helpful and easy to use. Someone met us in person outside the apartment and accommodated our later than expected arrival (flight delay).
The space itself was extremely clean and laid out well for our needs. Having two bathrooms was very helpful! One thing to keep in mind - the bathrooms, particularly showers and sinks, are very tiny. We all got by fine, but a larger guest might have trouble using the shower.
Also keep in mind that because this is in the middle of the city center, expect some noise to carry into the apartment. Didn’t bother us at all, but just want to call that out.
If I am ever back in Madrid I’d be happy to stay here again. Great experience!