if rider has got a preferred route/short cut, then rider should point it out to the driver. we driver can't possibly be familiar with all roads and know all short cuts. If we pandai-pandai use short cut, the rider might say we try to cheat them, especially if foreigners "why ur not using Waze??"

most of the time i'll ask the rider if its ok i follow directions given by Waze...

some riders also tried to be smart and use a way which they tot was faster/shorter but end up longer due to unexpected jam...

Waze not perfect, sometimes tried to be too smart for its own good...i remember once on a trip to KLIA, it points me to drive to INSIDE the runway 

but its the next best thing really