Interestingly, outside of London where I live, Uber is more reliable than the local offerings despite sourcing the same companies and drivers. Admittedly it charges almost twice as much though, so probably something fishy going on...
I'm hardly a heavy user of Uber but I think this is useful - any opportunity to earn on spend I'd be making anyway is a bonus to me. As long as it doesn't result in an ever greater devaluation round the corner...