I went from not having anything but a depth finder that barely worked on my boat and saved up and bought a humminbird 998 last year. I really don't even barely know how to use the thing, haha. I haven't fished a whole lot with it but I'm sure there are some setting adjustments that would help me a lot. I don't really see fish on my down or side imaging but I can locate structure with it, never have seen anything as detailed as some of the screen shots some guys post though.