Purchased this item on sale from DSE about 2 weeks ago ($278.00). understand it is a superseded model but agree with suburbanblueprint that it is a good device.
Just one thing I have found so far is that it does not distinguish well overpasses with exit points (but it does recalulate very quickly). Only tested on the Melbourne/Sydney highway around the Wangaratta stretch doing a wineries trip.
Will test it out a bit more soon with a trip from Albury to Ballarat region.