The "stay" was a disaster.
Until shortly before our trip, we were in contact by email. On our journey, we tried to inform the owner of our arrival by phone two hours beforehand. We were on time for check-in.
But we could still not reach anyone for a long time. Then we found out via an emergency number that unfortunately we could not have the flat - about one hour AFTER the check-in time. There we were - after a 6-hour journey - with four children on Saturday afternoon on the footpath in Prague...