In regards to pspace, it's ok for viewing models as a layout but if you have to do workshop details of a particular item that requires more than one view and possibly sections you really have to work hard to produce them (compared to mechanical app's such as SolidWorks) and need to be created in seperate files.
The age of BIM is 'almost' here and while it may not be addequate (i.e. accurate) to take detailing info straight from the model produced by consultants to convey design intent, it would be good if you could grab something from them and be able to produce 2d views in intuative manner. I guess that's why we have to buy verticals and add-ons as it's not the intent of vanilla AutoCAD??
In my particular industry (structural steel detailing) there is little out there 'on the shelf' to use, app's like solid works, alibre and even Inventor are very good but have too many constraints and options for this type of work but do a fine job of 2d drawing of assemblies and parts. We need something in the middle I guess