Upon my arrival a very strong odor was present, the odor became stronger walking into the bedroom and then we realized it was the bathroom, I informed Host in which she admitted to being aware of the issue yesterday, and now she couldn’t do anything, solutions offered by the host was another flat but then it was no longer available, flush the toilet, run the shower, open the windows, to minimize the smell granted it was freezing outside. I was starting to feel nauseous and my husband now had a headache from the smell which seemed to be sewage. In my opinion. Airbnb was contacted for assistance, due to Host strict cancellation policy it took almost 3 hours of our vacation to deal with this situation, Airbnb issued a refund with $100 reimbursement for our terrible experience. Just when we moved passed the situation 2 days later a false damaged/ cleaning fee for $109 was requested from host but Airbnb closed her case. If your interested in booking this flat please read the all reviews.