I took the cheapskate 50mb option just to check out what you get.
Frankly I was a bit disappointed with the coverage. Why it doesn't cover parts of the Blue mountains after Katoomba and everything beyond west to Bathurst really confused me. Even the road routes aren't mapped. I would have thought these areas would benefit from a fire and search/rescue or even farming/grazing point of view. Fortunately most of the regional centres are covered - searching for Goulburn and Orange get the latest maps. Or maybe it's just nearmap not unlocking the maps for personal accounts??
Furthermore the bandwidth gets chewed up quite quickly after a couple of searches. So you really need to know what you are looking for first before diving into the maps. Best thing is to use Google or Bing maps to scout an area you want to see before getting a more updated and better quality image from nearmap.
There is a free membership option for people working or studying at tertiary institutions. I will let one of the members who took that option to go over that later (won't name who

I'll have a few screen grabs of the interface posted later.
Overall I love the image quality but I won't be renewing my membership for this due to coverage. There are better options coming down the pipeline if you search hard enough. Nearmap - get the coverage sorted or make it available for all accounts.