As has been noted, this is functionally a hotel - as such, you can't really message for more information, but you don't really need to as check-in is as simple as it normally is for a hotel (i.e. arrive whenever you want, head to the reception desk and grab your key). The suite was quite large (full living room with TV, kitchenette, small dining area, large bathroom, good-sized bedroom) and was very clean. Probably our biggest "complaint" (although not really a complaint as we knew about this when we booked and it matched our needs for this specific stay) was the location - not at all easy to get to central Madrid from here, however it is super close to the airport (we walked, actually). As everyone else has noted, if you are staying for a night and then flying out (as we were doing, just needed a place to sleep between airport visits essentially), it is truly the perfect option as the free airport shuttle makes it all the easier. However, just do note that if you intend to go into the city, you will have a bit of a headache.