I use it all the time. I want to be able to find wpts and fish them. Also, I have a trail recording all the time so that I can run a bank a second or third time and keep the boat as close as possible to what it was earlier and the track helps a bunch. For me it is more important up front than on the bow.
Definitely opt of the chart plotter! I don't have my HB graphs linked, but I'll use a marker buoy and then with the TM I'll locate the structure or cover I initially wanted to fish and mark it on my bow graph. Then I have a buoy to watch and a gps way point.