It was in terrible shape firstly. The new round of fixes has just been completed so it would be good to see it again before it resumes crumbling (those cantilevers have been drooping from day 1 and were 4 inches off by 1955, when I saw it there were seismic sensors all over).
Secondly as a tall person, 6’4”, the ceiling heights are just uncomfortable. Wright sized things for himself and he was a little man. For me I had the feeling I needed to duck constantly and the sense of unease destroys the other positive aspects of the house. A real shame.
Great works of art are meant to be religious experiences. At Falling water, every part of the house & estate feels like it was meant to be there. The shapes and curves feel so right. The emphasis on integrating natural materials makes it feel one with nature. Frank Lloyd wright cared a lot about sight lines, which makes every space easy on the eyes.
I've had similar experiences in great Basilicas[0] such as Sagrada Familia[1]. Smaller objects have evoked similar feelings too. Be that cars (The Ferrari Roma[2] or Alfa 33 Stadale[3]) or intricate jewelery (Earrings [4] or watches [5]). Great beauty feels divine, and Fallingwater is one such example.
[0] Special shout-out to the new Romanesque basilica in DC - https://maps.app.goo.gl/8r59NzbgVnqKYAv2A
[1] https://thebarcelonafeeling.com/wp-content/uploads/2022/12/S...
[2] https://media.architecturaldigest.com/photos/5f96f18f0a2396c...
[3] https://upload.wikimedia.org/wikipedia/commons/d/d5/Alfa_Rom...
[4] https://www.metmuseum.org/art/collection/search/39320
[5] https://www.watchclub.com/upload/watches/gallery_big/watch-c...
Even the little details, like the vents/intakes for the HVAC being built into the back of surfaces/built-ins, so they're invisible unless you peer over.