IMHO
Waving down normal Taxi service in the city is horrible. 80% of them refuse to go where I want to go, 25% of those do not know where I asked then to go. I have been dropped off far from where I wanted to go because he misunderstood me and I speak very clear Thai.
I started using Grab exclusively as they always know where I want to go and how to get there without heated conversation.
However over the past few years Grab has become unusable as well.
Almost every time I call for a Grab the driver complains that he is too far and want ME to cancel so he does not get points deducted for canceling too many rides.
Even after giving plenty of extra time before requesting I am always late now when trying to use Grab because of the constant cancelations!
Because Grab is basically a monopoly in the area there is no incentive for them to fix their broken program.
Uber should be allowed to operate in Bangkok and heavy traffic areas as the system they have set up now is made to prevent that constant frustration between driver and passenger needs.
What would that take? Involving international news to shame the horrible and backwards Taxi system in the country?
Who else even cares, or is it just me... =]