When we arrived to the apartment we noticed that there was a large piece of wallpaper torn of (in the bedroom with orange wallpaper) with horrible mould showing beneath it. We did not feel comfortable sleeping there, especially not with kids.
We communicated this directly to the Sebastian office by phone and got the promise that we would get a full refund (we confirmed this with them multiple times before booking another hotel, which was quite a hustle that late for a weekend in Paris)- otherwise we would have considered staying in the rooms without visible mould. Although we had agreed upon a full refund, in contact with Airbnb support, it came to our knowledge that the Sebastian office declined all refund.
The communication with them throughout this has been absolutely absurd, and I hope that is due to difficulties communicating in English and not just playing dumb in order to delay the matter so that the 24 hour limit for reporting to Airbnb could run out.
Fortunately Airbnb covered the cost, since they had the pictures from the apartment- (thank you for that, Airbnb, such a good help in a case like this!!). As an Airbnb host myself it really upsets me that hosts can act like this.
AVOID!