i Know, that many architects (like me) like to use corel draw. but the export to dwg (which is often needed) is poor:
1. if you try to export bezier-curves, the result is a large nummer of very short lines (i often get complains about massive problems with the files).
2. if you try to export fillings, they get lost.
3. if you try to export embedded bitmaps, they loose scale.
Using Corel Designer or Corel Draw makes no difference.
a better dwg/dxf-export would be a real important feature.