I was recently in the Bay area and tried these e-bikes from Lyft.
When you're finished you are expected to return them to a docking zone as opposed to ditching them wherever you finish. These parking locations are all over the place and easy to find.
They get the job done and the bike is fairly pleasant to ride on flat surfaces. Hills aren't recommended. The city is bike friendly in most areas with bike lanes all over.
If you're looking to get around and the weather is good, I'd recommend giving them a try if you're in SF.
