I guess it’s pretty basic to like FLW but god damn did he make some lovely houses. Incredibly cozy and livable, just a pleasure to simply reside in them. I just love their shapes, materials and spaciousness.
Like the Johnson Wax complex in Racine, there were regulatory objections to the design. For the Guggenheim, two fire exits were required per level, so how is this done with a spiral ascending gallery? For Johnson Wax, the "lily pad" column supports were tested to 10x the maximum rated weight. I have not been to Johnson Wax.
Wright did prove his designs durable in unexpected ways, several times.
(But yeah, as someone else mentioned, many of them probably demanded a special fortitude of those who chose to live in them.)
They do look fabulous, but man I wouldn't want to live in one.