Is it a newer model? I have one that I have had for several years and it works great for locating cobia, stripers, etc. in among the pilings of the various bridges. With it, I am able to look left, right, left and right at the same time or just downward. It is the 3D model and cost, at the time, around $400 and is small enough to use on my 23 ft. boat.
I've been looking hard at the same system. There was a post a few days ago with images from the James and I can't remember the poster, so you'll have to do a search. I have a "regular" FF and I believe that this would be a nice addition to my boat. One note is that the side imaging is supposed to work to about 6mph, but the traditional mode is available above that speed.