This apartment is well appointed and located conveniently near 2 metro stops. Tirso is the most convenient. It is also an easy walk to many areas in central Madrid. I have stayed at another of their apartments in the same building.
I would highly recommend this apartment. It is a larger one bedroom. And it has AC so makes the heat of summer more bearable. There are washing machines in the building if you need to do laundry. Not as convenient as having them en suite but still good.
And there is an elevator.