With all the new GPS approaches coming out, the 2 standard binders are insufficient for all the Australian contents.
IMHO, Jepps maps suck. Far too cluttered and not enough contrast in the ink colours to make them easy to read. The Jepp approach plates I prefer over Air(dis)services.
However, the Jepp maps are easily foldable for use as sunshades when not in E or G airspace.