[Richard Kimball]

I didn't explain myself very well. Wright's buildings were aesthetically pleasing, but IMHO, tended to leave no place for a human being in them. The copy cats that followed Wright pushed the geometry and made some truly disgusting architecture.

I had heard that many of Wright's buildings have structural problems.

[tsomer]

Wright's buildings were aesthetically pleasing, but IMHO, tended to leave no place for a human being in them.

I think Wright will always be the greatest architect of the 20th century.

Not that he didn't make mistakes; his first actual real world project was for his sister. Whenever it rained the house leaked. Once, while distributing buckets during a rain storm his sister remarked: "This is what happens when you leave a work of art out in the rain."

[tsomer]

One last thought:

I.M.Pei belongs to the European minimalist tradition: internal load bearing piers supporting “curtain walls.”
The idea was that by freeing the exterior walls from any structural role, the designer had more freedom enclosing the space. Ironically, their strict, idealized adherence to geometry severely constrained the possibilities this offered.

Anybody interested in this stuff should read Tom Wolfe’s “From Our House to Bauhaus.”

[Publius6961]

I had heard that many of Wright's buildings have structural problems.

I believe all still-standing Wright buildings do.
The only exception I know of was the (now gone) Imperial Hotel in Tokyo.