Overall, I'm pretty disappointed in the Lowrance. I have been a Garmin guy from the beginning, but made the change for the larger screen, availability on dash mounts, and the Sonic Hub. The Sonic Hub freezes both the Ipod dock and usb drive nearly every time I go out. The 2013 Topo map card sucks majorly, but I see there is another 2014 offering with satellite imagery built in.
I tried to call Lowrance tech support last week, but it's always afternoon when I think about it and they are already closed. For right now I will plan on carrying both Garmin and the Lowrance.
What are you guys using for maps?