I stayed in apartment for a whole month. Hotel is very near center and close to Retiro park. There is not much noise from outside. Apartment was modern, maybe recently refurbished, has large fridge and microwave in the kitchen. The guys at the desk resolved my initial problems with WiFi wright-away. That was my only issue, so I was pretty satisfied with accommodation. My host checked with me from time to time via mail to see if everything is in order, but I did not have any complaints.