I rented the apartment for an extended stay of one month. The apartment is very beautiful with lots of sunlight. The location is residential and quiet with a grocery store (Dia) and restaurants close by. If you are a tourist and want a more lively neighborhood with more bars and tourist attractions, I would suggest staying in Malasaña or Sol (father south) but this was perfect for our needs.
A few things to note:
1. The main bedroom isn't actually private (no walls) from the main living area and the smaller bedroom is VERY small with a twin/individual bunk bed. 2. There is no A/C and all the sunlight makes it extra warm so if you're traveling in August like I was, it will be very hot.
3. The lock to enter the building is very tricky to use. You must pull the key out less than about 1/4 cm and then turn to the right.