Apartment was generally excellent - modern, spacious, clean, tidy and well located for the metro.
HOWEVER, there are a few significant reservations.
There was a total breakdown in communication between the owner and Airbnb. We were advised beforehand by Airbnb that we should *not* to pay the €300 security deposit but the owner refused us entry to the apartment until the deposit was paid. This resulted in a lot of stress and eventually we were left with no option but to pay or have nowhere to stay the night. We therefore checked-in hours after our intended check-in time.
From follow-up communication, it seems the owners *are* permitted to charge a security deposit. This confusion needs to sorted between the owner and Airbnb.
On another matter, we also would have appreciated being forewarned of the broken window in our children's bedroom. This was a large, floor to ceiling window on the 6th floor!! Had we no noticed it, they could have been badly hurt.