This is a great apartment for a group that is looking to explore and enjoy Madrid for everything it has to offer.
It’s in a great central location (Gran Via), got lots of good bars and restaurants on it’s doorstep and close to attractions (Mercado de San Miguel, Theatres, Plaza Mayor etc).
The only negative with this apartment is that it’s next door to a club which you can hear in your bed, if it’s open - This only really troubled us on one night as we were enjoying Madrid’s nightlife most of the time.