The short message: Don't Bother!!!!
Three or four of these places are now open - Kearny St., Bush St. Howard St., maybe others... I went today hoping for a "Top Dog"-like experience (a la the East Bay shops).
WHAT a Disappointment!!!!!!!!!!
$4.00 for a modest sized (to be charitable) sausage, grilled for a minute but lukewarm at best, and dessicated from pre-cooking. They claim to toast the bun but I wave no evidence that the toaster was working. Grilled onions and other basic condiments are $0.25 additional.
When offered constructive criticism on portions and quality, the staff was rude.