Great apartment for two/three people or for a family with young children! Although not in the center it's near two metro stations and near El Corte Ingles/Hipercor. And you can make use of the small gym from the apartment block! However, the key needs to be collected from a pharmacy not nearby and, since open 24 hours, you might have to queue for a long time (we queued for 20-30 minutes since our arrival day was a holiday in Madrid).