I think that there are a couple of people who have them on Bass Boat Central and commented in the Lowrance section. If I’m not mistaken, the max usable distance might be 40’, and the dual beam setup seems to use up screen space unless you set it up for deep to compensate. It still might be a good, less expensive rig for small boats or to have as a second unit despite the drawbacks.
If I'm not at work or taking kids to their activities, you might find me on "The Rez" fishing. If not there, I could be in the garage working on my boat.