A small room in an apartment near the city center. The room has a bed, wardrobe and a desk.
The kitchen/living room is also a bedroom for other guests, so it's not very comfortable. The kitchen is full of stuff from (I imagine) previous guests and it wasn't clear to me whether the host actually lived in the house.
Bathroom is shared between all guests (up to 6 at a time).
The host was very nice but doesn't speak English.
It was the cheapest Airbnb in Lausanne, so I guess it was a good deal overall.