Sounds fair to me, I know how to use it with pretty good accuracy and its never been a hassle using it etc, in fact I used it just the other week when trying to find where a bit of SWA went under an extension through the slab!!! then up into a plug socket.
it took me straight to it, quite straight forward, simply earth the cores you don't want to trace and connect the pulse if thats what you want to call it to the core you are tracing and then turn it on, i put it on max output, then on the receiver i put it on max at first to find it from a distance, then turn it down and down until i can have the cable within 6 - 8 inches of the end, i actually followed it all the way up the garden in to the house and under the floor.
I feel I need to video something to demonstrate it, I never got round to it before, but might do it now.