I was in Chiang Mai for most of December and I wonder how Uber can be successful there. The songthaews and tuktuks are so cheap that I almost always took those. The only time I took Uber was to go to the airport, since I carefully planned my money so that I wouldn't have any cash left over and Uber would charge my credit card and all the other options would require a variable amount of cash.

That said, the Uber was reasonably cheap, quick and friendly, so their service seems to have improved there.