This central, spacious, clean, bright, modern, well-equipped apartment was the perfect base for me & my 20-year old daughter to explore the vibrant city of Madrid. We had an amazing time, and the apartment was the perfect comfortable place to come back to for some peace & quiet during the day. Having said that, although the double-glazed balcony doors insulated the street sounds very well, the bar downstairs kept playing thumping music all night long (until about 4am) which reverberated through the walls, and was therefore difficult to sleep through. Despite this, I would still highly recommend Sonder, and hope to be back soon! With earplugs!