Zagster seems like an alright copy but I would worry about the exposed rear derailleurs on their bikes.
Everyone in the entire world is launching systems like
https://www.limebike.com or
https://dropbike.ca right now. I’ve heard reports that factories in China are churning out tens of millions of these bikes every year.
A couple things I would say about systems like Lime Bike or Dropbike:
The bikes are cheap and mostly pretty shitty to ride for more than 15 minutes.
Because they are so cheap they are really unsustainable. Most of the companies running these types of systems don’t repair their bikes because it doesn’t make financial sense.