Great location next to Plaza Mayor. We only stayed one night and Kio checked us in. Apartment itself is on the third floor with a window looking out on the streets. Great place to people watch and it does get quiet after 10PM. Kio provided us with a metro card (to add $ ourselves) and a few local tips which were very helpful. Bedroom is very cozy and enough space for our 2 carry-on bags. Probably not an ideal place if you travel with lots of luggage (I didn't see an elevator in the building), though Kio does offer to help with luggage if needed. Overall it was just what we needed for 1 night. Thank you!