I could be wrong, but what put me off a set of pointers was the shape of the rungs. The ones I saw for sale were round, rather than the standard 'D' shape.
They looked as if they would hurt your feet if you were stood on them for any length of time.
Of course, sturdy boots might help, but I do like to feel where my feet are on the rungs.
Can you get D shaped rungs with pointers?