I was similarly impressed with Youbike in Taipei. I assume the city government funds it heavily (eg; first 20 minutes free). Another major factor, though, is t

I was similarly impressed with Youbike in Taipei. I assume the city government funds it heavily (eg; first 20 minutes free). Another major factor, though, is that Taipei is pretty flat, and there's terrific subway/bus lines to get you across larger distances. SF's hills make bikes a pain for many routes. Personally, as an SF resident, I use Scoot whenever I'm not bicycling or taking public transit. Serves the same purpose as a bike share, with better speed and no sweat on the hills. Most rides are $3 which is great.