We had 5 adults stay here for a week, and had more than enough space so that we didn't feel like we were living on top of each other the whole time. With a grocery store and coffee shop right across the street, we had everything we needed. You literally could not ask for a better location. Less than a 10-minute walk to Plaza Mayor, Plaza Del Sol, and 3 metro stops on the L1. We will definitely consider staying here again next time we return to Madrid.