It is the best terrain editor/generator I have.  I am very happy with it.  Especially since it will work with other 3D programs as well.  It is not Vue specific.  It also works well with Carrara, Terragen, Bryce, and others.  Especially since it can export to .obj format.

Do look at the tutorials.  It will help you immensely.  It gives a good idea just what can be done with it.