Screetch,
The screen in the screen shows is probably around the lower end of the middle of the road PND screens. Typical of the unbranded gps's that you can buy off ebay.
As for the Aware unit, it is indeed very popular, but I'm not sure why you'd bother to get it in your case. I'm not sure with system you plan to use, but the only one that would offer you less than the Aware unit is Memory Map (which is significantly cheaper). All the others will offer you significantly more.
The screen on the Aware unit is no better than the one you've shown in the photos, though to be fair, it's easier to read because the map background is white, which helps.
dp