I like the look of the ASCII graphics, but I eventually switched to using a tileset because the rectangular tiles made it harder to work out what buildings were supposed to look like and how far apart things actually were. The map has the same problem for me; it would be easier to decide at a glance which trips I want to take and how long they would be if I didn't have to do any mental stretching or compressing.
Secondly, it would be nice if I could leave different colors of blinking N's on my map to denote different kinds of interest. Blue notes for bases and camps, green notes for crafting materials, red notes for dangerous areas, that sort of thing. It would help me make sense of the mess I make of my map by the second or third season.