The best thing about this apartment is the great location. It has a nice balcony where you can sit and watch the world go by. It is close to the Opera and Sol Metro stations.
Inside the apartment is clean but could do with a refresh. It has the feel of a serviced room and a business rather than an apartment rented by a local.
It is a reasonable size and everything worked as it should, it is clean and all amenities provided.
The one negative I would mention is noise, when you close the doors to the balcony you cannot hear any noise from the street. However as the apartment is between two Metro stations you can hear the train passing underneath and the whole building vibrates. This vibration causes rattling sounds within the apartment which is not good when you are trying to sleep early in the morning.
Overall a nice place to stay but it would benefit from a few small improvements.