Modern approach to turn by turn instructions

We're working on a turn by turn navigation system. Most of our users are parcel delivery drivers. They use the software 6-8 hours a day for navigation. So the driver can easily hear 1000 times a day (not exaggerated) a sentence like 'In 100meters turn right'. I would like to have something more varied.

Should I rather keep it 'Short and sweet' like it is or maybe make it a bit more verbose like 'Turn left in 100 meters and then it's only 4 more minutes to your destination'?