We arrived at midnight, after we checked with the host that it is possible to do check-in at this hour.
Probably there was misunderstanding and the key was waiting for us in a place that was closed.
As soon as the host realize that we have a problem, he find the way to solved it and refund us for the night.
The rest of our staying was great.
The apartment is very big, clean, well organized, with high standard equipment.
The location is excellent .
Highly recommended, thank you very much.