Get an SI it will change your world if you don't already have one. I have a lowrance elite series and a humminbird 899si and I like the humminbird better. I would suggest going to your local fishing store and check them out or take a drive to a bass pro or cabelas. I think it's a Ford vs. Chevy type thing, both are going to do the same thing and its a personnel preference with the buttons and layout you like better.