I've been using the Globalmap 100 for about three years and love it. It by far is not the best gps but I guess it depends on what you're looking for. I've made quite a few trips across the lake to Chicago and Wisconsin and the 100 works great. the Mapcreate works well too. Plus I like to use it on road trips, as it has the builtin streetguide.
I'm getting ready to buy a Furuno 1650 which has a lot more features and capabilities but for the price the Globalmap works great and it has never let me down (even after losing it in the water at a boat launch for 1/2 hour).