Probably works great on a flat warehouse floor. 
Just think how often it is going to be shifting back and forth at highway speeds, every time you start up a little rise in the road...
I wouldn't like that at all...
+18 speeds is ridiculous. 9 is a fWONking joke. A CVT would do the job a ton better... but the marketing gurus know they are dealing with monobrow truck buyers who want to gloat about having more gears than you...



.