Very great service. They have two buildings: the main house, and a cottage in the rear. They have a beautiful courtyard between the two buildings with plenty of seats/tables. When we arrived, we were warmly greeted and led to our rooms.
As for breakfast -- we had the traditional breakfast and the french toast breakfast and they were both delicious.
You can also stay with your small dogs (not sure about cats) for $50 each.
Very beautiful view. There are a gift shop, snack stand, and restrooms. There are several places you can stop for photos along the falls: at the top of the falls, midway down, and closer to the base of the falls and river. Lots of parking and picnic benches for lunch as well. You could easily spend the entire day here.
From what I can tell, you can't actually enter the building. There is a postal box across from the building that you can put mail in.