The San Francisco area EV folks must be jumping for joy: SF Bay Area getting 25 electric car fast charging stations via 350Green .
You'd want to get on a better plan than $21 for three 30 minute sessions which is like $7 for 75 miles or 48/75 x $7 = $4.50 / gal gas for Prius. Better to charge at home or get better rate.
I'm curious to see how much these get used. Bay are seems to have enough leafs to see. The point of quick charge is not price, its to get filled up quickly. There are many doubts of whether this is the right idea. If many people need to charge certainly you need many fewer chargers at 30 minutes a charge than 3 hours. I doubt there will be a cue, but there are the normal 240 vac chargers right next to this.