The designs all feature spectacular towers, like this:
All this design lacks is the flaming eye of Sauron floating between its spires.
and Grand Entranceways:
Imagine this on a typical (cold and windy) San Francisco morning--and don't forget the sleeping winos!
Whatever you think of this as architecture, it doesn't do much to improve transit service. Although the terminal is the intended endpoint for an extension of CalTrain to downtown, that's really a separate, so-far unfunded project. Transbay bus riders may have a classier place to wait, but it's not at all clear to me why, with BART and ferries, transbay busses are even necessary--perhaps all this money might be better spent improving transit connections in the East Bay to make BART more convenient to get to.
Only in San Francisco could this project, which promises no improvements to speed, capacity, or ridership, be hailed as a great improvement to public transit. But however you look at it--as a billion dollar bus station, or as a train station without trains, or as (most honestly, in my opinion) as a real estate deal masquerading as a transit project--it's another example of the type of "investment into transit" that our region's leaders prefer--ones that boost civic and personal pride, and enrich developers, but address the needs of the transit-riding public only as an afterthought.