Great apartment but pity about the street noise. If you're staying for a few nights on holiday it probably won't bother you. I was there for 3 weeks for work and the noise from the street was challenging to say the least. It's located on a very busy street for bars and basically people in Madrid like to party til close to 6am. One more thing, this apartment is run by a management company who told me they were managing many apartments. So when I texted to say my flight landed early and I would be there an hour earlier than expected, no-one responded. I had to wait close to an hour and a half on the street late on a Saturday night for someone to come and let me in.