This studio was a great location in Madrid- I walked everywhere. The studio was well air conditioned, clean and had everything you would require (towels, iron, hairdryer, shampoo and body wash etc). Bed was comfy too.
Check in was fairly easy although they did charge me extra for checking in after 8pm even though it was a self check in!
My only fault would be the key is very temperamental and stiff meaning had to be buzzed in a few time due to it not opening the door (or me not being able to work it). Also beware that it is 4 flights high with no lift. Can be a bit challenging in the heat!
Other than that, the apartment was perfect thanks :)