Yes, I have, many years ago in Hong Kong.
I would probably not do it again as I was petrified - the guy weaved in and out of that awful traffic with sometimes just inches to spare from the cars around us, and I thought "my days were numbered" so to speak!
It was not fun, added to which I felt so sorry for the driver having to pull us though he seemed to do it with no effort, but it must be difficult, and it is something I would not want to do again.
At least he got a big tip from us!