I live & work in the US now, and find the airspace system here sooo much easier than Oz - with one exception: I *like* have frequency boundaries with freqs. printed within the area. Not to make position reports, but so that on the rare occasion I'm VFR and want flight following (or want an IFR pickup), I know what freq. covers the area. It is not efficient to try one freq. on spec., only to be told the correct one is really 123.45 in that area.
Mind you, when I flew & worked in the UK from '99-04, it was like stepping back to Oz airspace in the '80s (with some even more regressive procedures attached). In fact, that was how I mentally modelled the system to understand how it worked.