Well not sure if you made a purchase on this item or not but i thought i would add my two cents worth. Honestly i agree with everyone else as far as imaging on the lake. The next question I would ask is price range, and other features you are interested it. Personally I am a huge fan of lowrance HDS, has pretty good sonar and chart, but it also has a ton of features that 90% of people will never use. If you like the sonar on lowrance then I would say an elite 7. Hope this helps