Investment rounds like this worry me - Uber is already doing fine, and making money. An injection of cash like this will help them expand to new markets (fine) and also absolutely flatten competition in existing markets (bad). They could drop the price of Uber X (again) but absorb the cost to drivers, edging Lyft out of the market. As long as they beat Lyft before the investment cash runs out, they win the market and…
It's basic game theory, if I run an operation that does 10,000 rides a day, and my competitor does 5000 rides per day, I can tweak prices and wait times such that the competing service is strictly inferior for both drivers and passengers.