I have an older an Older Hummingbird 597 HD at the bowl and have recently mounted a Garmin ECHO MAP plus chirp 73sv at the console. Can't really compare the two. But I really love the Garmin. But the hummingbird served me well. The Garmin has so many cool features, as I am sure the others do as well. It is so crisp clear even I can understand a lot of it. Would love the Panoptix, but it was a little out of my wife's blessing range. lol Maybe someday. Mine is compatible, just need the transducer. There is a post on here that has really helped me better understand my electronics, but there much more to learn. Now if I could only catch fish.