I've been looking (again) at what DWF and Design Review can be used for. So far as I can see it is fine for markup, but not much more. Bluebeam seems to be a much better option for everything except linking to Revit. Here are some of what I can do with bluebeam that I'm missing:

* Layers: I can't see a way to create layers and draw in them. This can be useful for my construction engineer colleagues when they want to sketch different aspects of a solution.
* New Pages: can't see a way to do this (importing PDFs is not really the same thing)
* Symbols: it looks like I'd have to re-create all the symbols we use

Have I got it wrong? Is DWF much more useful than I can see?