the graphic on this device be much sharper and color much better than previous version I have own -lrb- Nuvi 660 be the last -rrb- . that make the display interface more invite although the map display seem pretty much the same -lrb- albeit better resolution -rrb- . the voice pronunciation be significantly improve over previous model . it be more fluid and street be pronounced much better . the fact that it can be use in `` portrait '' mode be great ... I like see further ahead on my route when I want to . I also love the customization of the display info on the map to include thing like mileage remain or altitude or time remain or time to turn or direction etc. . all these thing be much better than previous model ... in fact a order of magnitude better . I find the voice recognition to be pretty good give the noisy environment of a car -lrb- turn off you radio when you talk and it work even better ! -rrb- . however , the number of command control by voice be very limited . you can not pan and zoom use voice and you can not switch to the `` datum '' screen from the map -lrb- but you can go the other way -rrb- . they should make a lot more of the command available by voice but just zoom in\/out would be a major major improvement for `` hand free '' use . the major disappointment for I be in the route . I drive from Houston to San Antonio and back four time a month . it be 200 mile each way of which 189 mile be on Interstate 10 . I have one stoplight each way . my nuvus 660 -lrb- and daughter 270w -rrb- both route I along i-10 for 189 mile . unfortunately , this device have I exit off the highway at one exit and get right back on after go through the intersection . this make absolutely no sense . I estimate there be 30 instance of this . I have try change the preference for route and that help some but it still want I to get off . I think that for some reason it want I to take us90 rather than i-10 but clearly that would be foolish . also , leave home , it send I six block up , one block over and five block back to get on the highway so you drive right past the very street it put you back on later -- and it even recognize they be interconnect . it also can not direct I to my home but admittedly it be hard to get to my place because it be right next to a huge urban interchange and the road be hard to map . nevertheless , you buy a gp for route and this do a very poor job . I can not recommend the traffic reporting . it do not see any of the traffic directly in front of I but it do for accident 70 or 100 mile out . not very useful . also , the killer for this be that I pay a huge amount of money for this device but apparently they insist on sell advertising on the traffic display -lrb- how much do they make ? one or two cent ?? -rrb- . this be suppose to show the sign above the highway interchange but it only do it once . since then , no joy ... it tell you about the route but it do not show the sign . the display of 3-d building be fun and surprisingly accurate but not very dense even in Houston . therefore it do not really help navigate by provide visual clue on the route . they have come a long way with the device but , unfortunately , the route problem be significant . in the end , that make it , at best , a `` 3 '' for I . of course , you may have a better experience living in another part of the country .