Fantastic place at posible the best location in Central Madrid! Automated check-in: they just send you the code for lockbox with two sets of apartment keys. The place is on the top (5th) floor, and the elevator is a bit capricious - won’t move if the total weight is over 150kg… the location is fantastic - in the middle of all-pedestrian shopping area, so you’ll have to walk a block before you get a cab. Super fast Internet. Very nice place.