Yes I have the 390i which I bought to replace an old hummingbird. The charts, that come with the unit are descriptive out to about 3 miles. I bought the chip set for it and love the unit . Its a little pricey for what you get at first but when you start finding all the options I guess its worth the money. I dont have the fish finder . I didn't care for the idea of the extra box , ff525, so I went with the furuno rig that sports both 50/200 split screen.
I'd stay away from the sounder options from Standard, and if at all possible, step it up to the MDS-8. That 12'' radar dome just is so small that in any kind of unstable sea, it's rendered totally useless.