Summary: Deent unit with good color and lighting but very battery intense. One of the problems I had was not with the unit, but Map Send from Magellan, The program is not compatible with Windows XP Prof. in fact the only operating system that I found that works with the program is Windows 95/ 98 Do not like the fact that the PC Connection is a Serial Port, but you can purchase an adapter that will adapt a serial cable to USB providing you don't care the extra expense.
Summary: The Base unit is good...backlight draws a LOT of battery time (expect 1-2 hours with the backlight on). Don't expect an easy interface with their software. Support is also lacking. I use for both boating and driving (BlueNav/Topo). Both pieces of software need integration work (the maps will not co-exist on an SD card (I have 128 Meg SD card) More than 32 Meg is a waste of money. Hopefully they will upgrade the software and firmware.