I'd gotten used to the awkwardness + the resizing + the imprecision of yahoo/mapquest, BUT...
I'd also gotten used to the yellow page functionality and the satellite/aerial photos.
I can say, REALLY efficient/elegant loading system, httpget requests rawk.
Needs abovementioned features and slightly better navigation (I had to go back to the USmap to enter other directions), and it'll be perfect.
Edit: It looks like all its location-finding is built into the 1 textbox parser, INCLUDING yellow pages. While impressive, this is very rough, and doesn't have contextual searches (like Yahoo maps' ability to search for every mexican restaurant in the area, regardless of its name).