Hi all
first I think shell is too great tool and it has a lot of good thing which never been in another program (Revit , Rino and 3D max) like: easy to great , modify ,real time modify, connect , countor but it has a lot of weak
1-Shell has not any detail (exception hole and sky light) you can't detail anything you can't draw any part on it and this pics (from AC help) are like a toy not an architectural building .