Got my card today.
As I assumed (based on credit line), it is a "normal" visa (not signature).
The brochure that came with it includes mention of the PRIMARY CDW that some have been asking about, as well as all the other advertised benefits. One limitation on this benefit I was not aware of - coverage is only afforded for rentals up to 15 consecutive days when traveling in the US and 31 days abroad.
Also, the agent confirmed the 50,000 point bonus on the card.