I have a HDS-7 Gen2 Touch and HDS-9 Gen 3 which is also a touch screen. I love the touch screen it makes things much simpler. Just like using a smartphone. I have them networked together too which is nice.
You might consider this one:
http://www.lowrance.com/en-US/Produc...lite-9_Ti.aspx
Shop around for the best price. I haven't used one so I don't have a "review".