Uber in Puna

[eigoya]

I know I read about an Uber driver here once, but it seemed like it was not working well from what I recall. Is Uber active now? Puna destinations certainly show up on line but can you schedule in advance for an important appoint (ie: can't be late). Has anyone used and are they reliable here or does it just depend on what driver is where when....conversely, is there a local cab?
Any info greatly appreciated!