Tesla Motors Club

I was surprised when I went to the Mall the other day where my local Tesla Store is and saw 2 charging spots on the 1st floor of the parking garage that were by a company called "Volta". Apparently they are always free and these 2 spots supposedly offer 40A service through a J1772 connector. I didn't have time to stop and try them as I was leaving the mall, but I will test them next time. Very well advertised as each spot had its own accompanying lighted billboard of sorts.

Apparently all the Volta spots are free. Looks like a really nice option if you are going to the mall (or wherever else they put these) and just need to top off your charge.

Anybody familiar with these stations? How was your expereince?