But this article is about San Francisco only. 72% of cabs never show up? Sounds like you guys have a truly awful cab system. Thankfully for people in New York, London, Paris and other Uber markets, that isn't the case.
My personal gripe with Uber: I have no idea how much my journey will cost. I assumed that the app would give me an estimate, or even explain pricing, but it doesn't. The only option I had was to request an Uber cab to take me on a mystery ride to my destination and ding my credit card afterwards. No thank you. (Ironically, I imagine that the product works great for people like VCs)
It's weird that a company spends so much time talking about the complex math behind their product but don't use it to provide the simple figures that matter to customers.