I find this building to be a really elegant, beautiful modernist tower. (Modernism with a twist is back in and has been for a while) Its a beautiful building for a truly evil company and I hope this building is around long after "Goldman-sucks" has been broken up by the government.
Look at how similar this building is to this in Minneapolis from the early 1990's, also by Pei-Cobb:
http://en.wikipedia.org/wiki/Capella_Tower