On the day we were supposed to arrive there wasn't any response to my messages. I was feeling sick due to food poisoning and was just trying to make it to the apartment really after a long day of traveling from across the country by train... what I finally came for was an already paid (and confirmed reservation) apartment which was double booked, for someone else and this was informed to me once I couldn't get in to the apartment and I had to call the host for more instructions. After a discussion on the phone they said they were sorry for the misunderstanding and that I did not have a booking. But I did (and was confirmed AGAIN via Airbnb too afterwards) and they wouldn't take it as a fact.
There I was, on the street 10mins from the center without a place to sleep on a Friday evening. The best they could say on the phone was that they will check things with AirBnb and that they are sorry - no help to book another place to stay, or book a taxi for me to the center or whatever. Wouldn't recommend this apartment as I'm not sure if you can actually stay there even with everything OK on your and Airbnb's end.
5* service from Airbnb once again to help me with this horrid case and refund and compensate for my bad experience even though not all was even necessary from their end but should have rather been the apartments duty. Highly recommend to use Airbnb but be cautious with reservations via it - experience is that you have to be certain that you are being welcomed once you get there even how good reviews and experience other people have had previously with the host.