The place is magnificent in terms of cleanliness, equipment and space for 2 people. It has been newly renovated and it was done in a very luxurious way. The bathroom is great and absolutely not the average bathroom in Europe. We loved the smart TVs, the A/C and the washer/dryer.
Location is also great: you can walk to the Palacio Real, Plaza Mayor, Puerta del Sol. A bit far from the nearest metro station (La Latina) but you can get by using buses and taxi if you do not want to walk a bit.
There were only 2 minor issues we had: there was a weird smell that would come up at times but not that bad (perhaps dampness or the sewage?) and the smart lock on the door did not work at all but we had a set of actual keys we used for the rest of the stay.
Host is super responsive and very attentive to detail.