I believe Susan made some valid concerns about Uber. While on the other hand, as did many others in response.
Uber VS Taxi's being good, bad, or indifferent is going to be made on a case by case basis; i.e. where does one live, the availability of either one, the time of day or night a "ride" is needed, etc; Questions one must ask from a consumer's point of view. There are and will be both pro's & con's for both options depending on that person's immediate concern.
I've been told no for a Taxi ride in New York and in California before (Pre-Uber) and have had Taxis just simply not even show up in Colorado. (Post Uber)
One must also see it the Uber driver's perspective too. The general consensus I've received is mostly positive. It seems to be agreed, it's not a full time gig as with Taxi drivers, but an extra income. They set their own times and areas to work but wise decisions must be made by them as well, i.e. do they own a automatic or a standard vehicle. Did I enjoy driving a standard vehicle during rush hour or downtown during lunch hour? Uhm, yea, NO. Neither did the Uber driver I spoke with who had a standard vehicle. Are $7.00 dollar fares worth finding out only at the moment of pick-up for the Uber driver? Taxi drivers will know beforehand and choose if they want it or not. If your a full-time Taxi driver or the part-time Uber driver, which fare makes more sense?
If I needed to get downtown in a hurry during high traffic times, the Taxi driver will know the fastest ways to accommodate my urgent need to be somewhere in a timely manner. Probably cost more, but worth it for me & the driver.
If I'm hitting the town on an evening of pleasure with social gathering, hopping one place to another; Would you want me to get behind a wheel of a car and drive? Or do those multiple $7.00 dollar fares make more sense for me and the Uber driver?
The simple choices and outcomes of cause and effect.