I'm a frequent user in Seattle. Here are two big draws: - One way trips. When you take your own bike, you have no flexibility for return trips. - Low overhead.

I'm a frequent user in Seattle. Here are two big draws: - One way trips. When you take your own bike, you have no flexibility for return trips. - Low overhead. My own bike seems to always have a flat tire or a skipping chain. I can never seem to remember where my lock key is. Etc...