Fluff and marketing
Totally wrong. I have used the low end, mid-range and high end units. I think their marketing is lacking. No unit can compensate for the quality of the transducer connected and Garmin makes the best. To even get in the same league using the other brands you have to go third party-Airmar. And Garmin providers drivers for those transducers as well. Nobody offers the transducer selection that Garmin does.
The only misleading information I've seen is the frequency and distance that lures can be seen on the Panoptix ForwardVu. I do see my lures at the distances people talk about but not dependably; meaning that I can not cast and count on seeing the lure most of the time the way I fish. The size of the lure and speed of retrieval really comes into play. I can make it happen but I don't usually fish that slow. I started with Humminbird, then switched to Lowrance and now primarily use Garmin. If I saw something that I though was better for my fishing, I would buy it. I use multiple units and a huge problem I had with Humminbird and Lowrance with multiple units was how to make them work together without interference. Historically the solution has been to avoid the problem by making networked units all look at the same transducer. That's not a solution for me. I want the separate transducers operating at different frequencies performing separate purposes. Garmin does that best and even they have room for improvement. On my 7610 I can run 2 transducers, one of them a combo 2d,side,down and 2 Panoptix transducers at the same time. Tough to match that.