The host was very nice and flexible, we didn't have any problem communicating and we could check in as soon as we arrived in Prague. Even though the check-out is at 11 am, we were able to leave the luggage at home and pick it up whenever we wanted to, before our flight in the evening.
The apartment itself is a work of art. You can feel the real artistic atmosphere around the place. What we really loved about it is that it's super clean and in a perfect location(less than 10 min walk from the old town square) in one of the most expensive residential areas in Prague!