If you learn how to use it, it is the best thing since sliced bread! Just like any tool you do have to spend some time learning to use it. I can find structure extremely fast, and know EXACTLY what the structure is I am fishing. Will it catch fish for you... NO. Will it help you locate the structure that they relate to if you are willing to spend the time using the tool properly... YES.

Is it worth the money??? Only if you are willing to put in the time to use the tool to its ability.