I have used at least 4 highly recommended drivers and still have not found "the one". Maybe next trip...

We prefer a non-smoking/drinking driver who does not talk too much or too little and is a very safe driver.
I don't want to be depressed for the entire transfer hearing about the economy or politics.
I also don't want to sit in the car while the driver takes care of his personal business.
Once I had a driver from a reputable company take us to YS falls and he did not know how to get there! Thankfully, I did!
Plus, he tried to get us to pay the entrance and for our own lunch which was included.
Also, the switch out of drivers also bugs me...If you are not available, why did you agree to the service?

Anywho, found a pretty nice driver this last trip but does not have his red plate yet.
Hopefully by next year, I can give him another try once he gets everything done.