I have seen both sides to the Uber Coin and trained people in customer service. In this regard the Uber APP which if you accept as a driver or rider, are now a slave too and the APP is flawed for both parties, without any personal interaction, which is a major flaw in relation to Customer Service.
I can give you loads of stories of when the APP has failed for many different reasons and Uber taking no responsibility for a flawed APP especially on an android phone.
You work your butt off under Uber to ends meet and Uber takes 20% of all fares before tax, so surging is required so they get more money not the driver.
As this is an arrangement between three different parties with no mediator, your ethic or values will determine if this will become so called great company based on customer service or not, the current situation for drivers and the demands put these private drivers under to have access to the APP are difficult, yet your response even with new drivers to the industry, will get a go or not, if you give them a low rating like 4 out of 5. Anything lower than a 4 from a client get ready for a meeting with Uber, so just remember if you are in a bad mood don't give driver a low rating for your mood swing they will loose their jobs.
So all around Uber wins, and rider or driver being the foot fodder for Uber. Do you want to be their slave via a flawed APP that is now so big you will need to carry a laptop or desk top to run it correctly?