Marcello's apartment was great for our 4 night stay. It had all the amenities we needed for our trip and close to everything in town. The nieghborhood is great for food and bars. The apartment is conveniently located with a 5-minute walk to Gran Via and Callao, and near three metro stops. Marcello was very responsive and addressed all of our questions and let us leave our luggage in his restaurant (Aio) about 5 minutes away when we checked out. I highly recommend going there as well for some great pizza and beer.