Had a lovely stay! Location is perfect for the museums/Retiro/exploring Lavapies, and felt very safe for a solo traveler (lots of foot traffic until late night - but not loud!). It would be tight for four people if you were here for more than a night or two - better fit for one or two people if you’re in Madrid for a few days. Also deeply appreciated the air conditioning during the heat wave - I don’t remember it even being mentioned in the listing, but it was a blessing! Would stay here again next time I’m in Madrid.