I agree. I also have a late model Garmin with up dated software and 2008 maps (the 2009 maps have recently become available) and I've found that there can be the occasional hiccup.

Mine has done the job roughly 95% of the time, and it's a tool I've generally learned to trust.

Just make sure that you have the parameters programmed that you want to use ie: truck or bus, avoidance of minor streets, faster time instead of shorter distance, etc.

I have found recently that the satellite signal drops out every so often, so a map is always handy. I just have to make sure the bus is headed due north if Janice is reading it