G'day Sandy.....To put my comments into context, the HN5 we bought in April 2010 is our first venture into GPS street/map navigation. While we primarily wanted the unit for bush travel, we've just given it a run over 12 days touring Victoria;
Melbourne, plus a lot of regional towns both large and small. The hardware? The display is excellent, the mount is great and despite having no external antenna, the unit is super sensitive and holds as many sat signals as my Garmin60 WITH it's external antenna. We used the stylus exclusively for menu interaction - it worked very
well (and fingers only put crud on the screen). R66? We entered a couple of addresses on main arterial roads in greater
Melbourne - the directions were fair enough - the arrival accuracy was near on to the metre ! Search via text entry for locations required seems good - it must have a comprehensive data set. We will have to use that search/location function a lot more though to arrive at a view on reliability - in our home location, it seems to be error prone when suggesting
routes 'inside' of suburbs; once directions are ignored though, it rapidly recalculates. R66 seemingly includes road names for virtually all regional/rural areas in between towns, plus street layouts for even the most obscure rural towns - quite useful.
MMap ? We liked this a lot. The maps it accesses are chock a block full of useful display data for all regional areas that we covered and seems much more applicable for settled areas than the OziExplorer selections. We have started adding waypoint/points of interest flags etc. Naming them is fine but I haven't found how to save the point descriptions yet!
OziExplorer
Used it a bit in the regional areas covered, but once MM was tried we didn't go back. I expect Ozi to shine once we go bush.
The HN5 overall to date? ... a winner, for we relative novices ! 'Her indoors' thinks it to be very clever (my purchase is therefore supported :-o).
I can see though that we haven't even scratched the surface of what the apps can all do - much more to learn.
Darian 446