I love my 899. Keep in mind, if you buy an 899 never put the trnsducer on the boat, send it back to humminbird immediately and swap it out for a HD transducer. I think it cost round $100 extra, but well worth it. That is alot cheaper than buying the HD transducer out right. Im pretty sure the 999 and larger units come stock with the HD transducer. So if money aint a thing, go at least with 999.