I paid many hundreds of dollars for this sounder which is completely useless to me as the depth display reading is only about 5mm high which is unreadable to me whist using in the boat. I had an older Garmin (300c) (a similar size overall unit) which had a much larger and readable font size of about 20mm or so. I have Contacted Garmin regarding this and they have provided no help. A photo of the new EchoMap and my older sounder included below:

Sensitive, yet discriminating resolution. Nice nav system. No-brainer operating system. I live in an area that is quite remote with thousands of lakes that do not have any map dara yet. This machine makes it really easy for me to create my own maps and share them, which is pretty handy appea this machine makes it really easy for me to create my own maps and share them, which is pretty handy up here on the North Shore of the St-Laurence. I know that when I can go down south, I can simply upload highly detailed map data. In the meantime, I'm all set up to build my own maps of the undiscovered country that surrounds me .

I’ve used this unit about 10-12 times on my yak in the brissy river and the bay. It was pretty easy to install and my 12v 9ah battery keeps it powered for as long as i need. In the river i use split screen sonar and downscan, and have found it works quite well, images are generally agreeable with what i know to be there. In the bay i split the screen between maps and sonar. I use nearmap to find bits of reef and the coordinates, and plug these into the sounder to create and save boundaries which show up on the map. So far it has improved my catch rate. All in all a pretty good value unit.