Okay, But Needs More Help
It is easier to download the USGS maps (which are free on the USGS site) but the application needs to have better graphics installed. The maps through the program are rather grainy when you get a close up idea of the map. If you just download the USGS map in the PDF format, and use the PDF viewer, it is clearer and more usable.
It is nice to have this program, and it has potential, but as for the viewer part, it sort of is poor. Maybe the creators will make it so the maps are clearer at closer view, we shall see what future updates carry.
Gazmuth about Topos US