Bruce does make a point that when it comes to replacing mid level DTP applications like Microsoft Publisher® one does not need to look at Scribus. OpenOffice.org Writer in combination with Draw do the trick pretty well. He thinks Writer is especially suitable for long texts like books, manuals or thesis. Those documents tend to be text heavy with moderate variability of page design. In case you want to be more graphic heavy with little text, such as brochures, fliers or other marketing material, he recommends to try Draw.
I think Bruce should know, after all he is an accomplished book author and writes frequently articles.