Expect mice, feces, uncomfortable beds/couches, and constant intrusions by the manger/owner.
From the first night, the large bedroom had mice. There were mice feces on the counters in the living space as well. I politely messaged the owner on the 2nd day looking for cooperation to resolve this, she responded 3 days afterwards by trying to blame us for this, disregarding the fact that there are clear rodent dwellings on the side of the house of that room. During the time between, we used tents and campers to avoid sleeping in this room. Some of these guests were from Germany and were disgusted by the situation. She eventually confirmed this was ok in person, but then changed her mind that night and sent messages saying the opposite through VRBO. The following 3 mornings she barged uninvited into and onto the property.
We had a previous agreement to pay extra to allow us to host additional people for a night, since I was also hosting a family reunion in a city to the south and expected it to go longer. My wife decorated the house and property so that my family members that missed our wedding in Germany could get a feel for it and leave messages and write in the same guest books. The host saw this as an opportunity to demand more money from us. We never exceeded the number of people we said we would have that night, and never exceeded the overnight capacity at any point. Most nights we had less than half of the rated capacity. Nonetheless, she continues to unreasonably claim that we must pay for a "once every 3 year" septic tank pumping.