I am very much impressed with the capabilities of SU... but I find CAD applications more easy and the results are more perfect the 3D view is also more accurate without containing any mistakes and it is trustworthy. I have been using CAD applications for about more than 2 years and I'm loving it but there can be some more things that can be done by integrating both CAD applications and SU, like the use of DataCAD 12, import the SU features and then have DataCAD generate 2D elevation drawings. It can take a few minutes, but still quicker than recreating them from scratch, and cleaner than importing a dwg file from SU. So it can be more useful that just using a single software