Landmark is an easy to use CAD software that is compatible with other CAD programs, which allows for collaboration with other professionals, and also has great rendering capabilities to generate legible plans. Great tech support, too! The program is set up differently than AutoCad, but once the structure of the program is figured out, its fairly easy to take it from there. Importing other files types has been easy, too, such as adding aerial photos, pdf or jpeg images as backgrounds and supplemental information on the sheet. Its nice to be able to lay everything out in one program and be able to seamlessly update the plans as changes are made. Review collected by and hosted on G2.com.