Anyone have experience with Lowrance Mark-4 DSI Combo?

It seems to be a special at Cabela's for $200 and is a GPS with down imaging. Its not even listed on Lowrance's web site. It only has one review...

Any thoughts or experience(s) with one or a similar unit???

check out some kayak boards, I've read some comments on those as it seems to be a good size for a yak, the screen will be small so it could work good on a yak, don't know about boat tho.

I put one on my dash and it is nice. It is a little small, but I sit so close to it in my Champion that it doesn't matter I don't think I would put one on the front deck though, its a little too small for my old eyes to see when standing on the TM.

I have one on a 16ft boat and it seems to work good. The problem I'm having is I bought a Navionics East chip,but I
can't download the freshest data updates on my chip. It has been about a month now, they tell me each time they are making it top priority and they know the problem they just don't know how to fix it.. I can download them onto my computer but not onto the chip. Bottom line is Lowrance Mark 4 DSI/COMBO works just fine.