What do you like best?
The relative simplicity, as opposed to Civil, which has gone off the deep end, in my opinion. Sometimes it's just good to be able to create and edit drawings, and communicate them, without knowing everything in the universe about everything in the universe.
Map3D bridges the gap between a more complex 3D software I use; Vulcan, and the world of printing and sharing nice maps/diagrams.
What do you dislike?
The near impossibility to understand any of the 3D solid functions? I make 3D solids left and right and have no idea to translate them into Map3D. The "jargon used" for solids involves "rendering", "extrude faces" (wholly cow!), meshes, "faces-and-edges", NURBS (lol, again).
A solid is a solid or a triangulated set of faces, yes? A single face is not a solid, nor are several faces unless they have coincident points (triangles at least, eh? I noticed the meshes are triangles, eh?
Recommendations to others considering the product
If it stops now and avoids the "train crash" that Civil has become. Please leave a single, useful, simple ACAD for those of us who need a drawing and mapping medium to accomplish real world tasks.
What business problems are you solving with the product? What benefits have you realized?
Transferring real data between software to get it to software that can be used, QUICKLY, to solve real world problems. I work in mining.