My husband and I rented a GoCar last weekend, while we were visiting San Francisco. It was a lot of fun! if we would have tried to walk around, we couldn't have covered nearly as much area, and if we would have driven (a normal car), we would not have had the maneuverability and parking ability as the GoCar.
It was easy to drive, and just a fun little vehicle to zip around in! The GPS guided tour was humorous and informative, and we had the flexibility to go off in our own direction and take breaks whenever we wanted. It was fun to drive by the pedestrians while they took pictures of us (I guess we were celebrities), and wave to people in other GoCars when we passed them.
The staff at the rental center were really helpful and friendly. I lost the card, but I believe their names were Chris and Andy (they were working at the Fisherman's Wharf location on the afternoon of October 15th).