I have several complaints about our stay in this apartment.
First a lack of clarity in the pricing: few days before our trip we were asked to pay an extra to cover the city tax. True that this was mentioned in the apartment description, but it was cleverly hidden under "Show more" of the "House rules" section. Just add it to the total price of the reservation for transparency!
The self check-in didn't work and we got stuck outside the apartment at 1 AM. We had to call the owner which told us it would take 40 minutes for them to come and let us in.
When we arrived the wi-fi was not working, the bathroom sink was clogged and the coffee machine didn't work either. On the other hand I must point out that the owners fixed these problems the very next day after our complaints.
The apartment was not fully equipped to host 4 people, there were no bed sheets for the sofa bed.