Excellent accommodation. Very clean, comfortable and bigger than expected. Easy walking distance of major top tourist attractions. Shop right next door which was very handy. Market of San Antón just around the corner was excellent and we ate and drank there a few times, found some other excellent local restaurants too. The street is a bit noisy at night but this didn't bother us. If it did we could just use ear plugs.
Would highly recommend Luisa's apartment and if we come back to Madrid will definitely book again.