I have Fish Elite 480 from eagle which is close to the same. I like it fine. I've always had Garmin before so I'm having to learn it all over. As far as map cards the Hot Spots have worked for me on Garmin and Lowrance/Eagle. They are 5 foot intervals I don't think I would want 1 foot intervals there would be to many lines for me. I do like Garmins software Mapsource better on the computer. Lowrances Map Create is not as easy to use IMHO.