I have been using FamilyAtlas for mapping and find the maps to be wanting but the ability to add places (waypoints) to my map allow me to accurately map a move of a person across large distances.
I have a family that I am mapping in their move west in 1850 and then return home in 1863. The added way points allow me to adjust the path to accommodate where roads etc. would have been in say 1850-1865.
It doesn't look like the RM8 mapping will provide this capability but I can hope that Family Atlas maps are improved at some point.