I like that there are multiple ways of creating shapes, including drawing them directly in Illustrator or Photoshop (if using Adobe software).
In addition is provides many different options when exporting your pattern files so they can be used by other programs such as QuarkXpress & others without having too much trouble with compatibility issues down through future versions/updates! There's nothing really bad about this program but sometimes if something isn't working properly after an update then maybe just wait until all updates have been released before updating? Sometimes things get fixed right away - otherwise try waiting one week from release date since some bugs may take longer than expected due time differences between countries etc..