Tried it out last night. I was impressed with how easy it was to use, just set the gain to see the jig and your golden. We weren't marking many fish, but then they started showing up so we stayed in the same spot. Pretty cool, worked as advertised. The fish weren't too active, but we did catch 5, 3 came off the sonar. I have fished hyalite quite alot so kinda know that seems to work, and the sonar confirmed the depth that we usually fish at. I did however miss one fish because I was watching my buddy test out the unit, and not watching my bobber. I think the biggest advantage will be when it comes time to try out water that I have never fished, or to try new spots on lakes, jst to find out if the fish are there. I went in for half w my main fishing partner, definatly worth the 140 bucks.