being able to make a reservation on short notice

The current grade on booking (7,8) has nothing to do with the reality. First time we have such a disappointment on booking.com, we made the reservation very shortly and we did not check very carefully, we saw the good grade and booked the room. These are just some rooms in the house of two elderly people that do speak hungarian only, some old furniture from grandma put together to fill the room, very old sheets/linen, bad matresses, approximate cleanliness. These are rooms to let to workers or something like this. And this in the middle of nowhere, I really cannot understand the grade on location!? I really think the grades are fake...