Stanford has a spiffy web site up for the hall, and it certainly looks good, with attractive designs inside and out, with tiered in-the-round seating and, apparently, plenty of circulation space.
The height and the bowed-in panels on the walls remind me of the fixes to Davies Symphony Hall, but it's a very different design team here. The architect is Polshek Partners, with whose work I'm not familiar, and the acoustical designer is Yasuhisa Toyota, who is best known in the United States for his magnificent work on Walt Disney Concert Hall.
Here's hoping they hit this one out of the ballpark. A hall with acoustics equivalent to those of WDCH would be a thing of beauty indeed.
Update: Stanford has a news page about the groundbreaking, complete with video from the ceremony.