Really nice and clean apartment. It is exactly as in pictures or even better! The check-in and check-out is very convenient and there is no need to pick up keys as doors are opened automatically via app. As for location, it is very central, right next to Gran Via on a small side street. It was very easy to move around and there are so many good places to get very good Spanish food. Definitely try them!
The communication with the host was super easy and efficient.
Finally, one aspect which should me mentioned is that it is possible to hear your neighbors next doors (late night talks, running water in shower, etc.) as the walls are not that soundproof. However it should not be an issue if you have a deep sleep or neighbors know that at 2 am it is time to sleep and not take 30 min showers. :)
But definitely will choose this place again when I will be back in Madrid! Thank you!