It's good to see more urban areas recognizing that reducing the number of cars per person is a way to improve the local quality of life. For people who don't need a car to commute, car sharing is an affordable and convenient replacement for that extra car for occasional errands or recreational trips. For a long time I think most of the focus on transportation and cars was on the driving, and finally there's increased recognition that a big issue with them is that they simply take up a hell of a lot of space.
I don't need a car very often in the urban hellhole. For most purposes car sharing is almost as convenient as owning my own, and I don't have to deal with registration/maintenance/insurance/etc.