My experience with malaysia grab driver.. starting to become like taxi driver
Give many excuse area jam lah, too far lah.. ask me to cancel..and rebook. Ask him why he not cancel, he say cannot, lose incentive..
Come straight ask me off app, pay direct..
Say coming, message me 5 min will arrive, wait wait 10-15 min never appear, then he cancel me..
Pick me up, but during driving nagging at me, say cannot cover petrol costlah, come back no passenger lah.. mostly to KLIA
All the above happens few times already..

But there are some really great drivers, but getting less and less.. AND I always tip one.. extra RM 5-10 depend on location..
Those good drivers getting less and less because of the frustration they received everyday. And with the slash of incentive by next week, i think is going to be much worse.
Still quite handful bad driver out there, also face the kind of issue like u mentioned.