There was nothing nice about the WTC twin towers. They were impressive for their height but the architecture wasn't so much brutalist, but stark utiltarian with about as much warmth as a multi-level carpark.

Buildings like the Gherkin or 1 Bligh St are airy and spacious on the inside due to their innovative architecture. Bligh St being completely hollow similar to the Lloyds Building in London and the Gherkin's 5deg plate rotation creating vertical breezeways within the building.

https://www.slideshare.net/mobile/VikramBengani/the-gherkin-...