We are bike owners, personally, so we'd never actually had a chance to ride the B-Cycles before. They're ridiculously heavy, but also surprisingly comfortable. Obviously, the bikes are currently all shiny and in excellent repair -- we can't speak to how often they are coddled mid-season.
The program is definitely designed for you to buy a yearlong membership (currently, they're on sale for $49), after which you can check out bikes for free for the first 30 minutes, $1 for the half hour thereafter, and $4 for every half hour after that. Additional pricing schemes and the like are available on the B-Cycle web site. Now, enjoy watching us make idiots of ourselves.