Chuck Frank wrote:
Is this to be used for everyday driving or only for trips? If the latter do you carry a notebook computer with you as well?
I have a Garmin 350 and absolutely HATE it! I use Microsoft Streets and Trips with GPS (less than 120.00) on my laptop instead, a MUCH more useful and user friendly set up for traveling IMHO.
First time we used the Garmin it sent us down an unpaved alley (with the trailer) rather than going another 1/2 a block to a parallel 4 lane highway because it decided the alley was a few feet shorter. It always starts the route from your present location and immediately recalculates the route should you get off for gas food or hotel. On a trip home from GA, we pulled off an exit to eat, and the place we wanted was about a mile off the route, after eating the Garmin "recalculated" the route and instead of continuing on to I95 as we originally wanted to go we ended up on I85 thru Atlanta and Charlotte!
On another trip we used it for it took us on a very "scenic" ~ 10 mile trip of barely 2 lane wide twisty farm roads (again with the trailer) to get from one interstate to another.
The straw that broke the camels back was coming back from Nationals. They had a section of the interstate blocked off for repair in KC, the detour was poorly marked. No matter what we did the dman Garmin insisted on circling us back to the roadblock!
I have a Nuvi 350, and I'm pretty satisfied with it. Per your situation of getting rerouted back to the detour, I have a potential solution. The first thing I did was to turn off "U-turns" when I got mine. My reasoning was this - My boss's car has built in nav, and one trip in to DC where we weren't exactly sure where we were going, his nav system had us do a bunch of u-turns. In downtown DC traffic, that's beyond irritating and bordering on dangerous.
With my Garmin set not to suggest U-turns, it does a pretty solid job of figuring out decent workarounds when I've thrown detour challenges at it.
As for your situations of being routed on skinny two lanes, the "Use interstates/highways" option might have been of some help there. I've also used the "avoid interstate/highway" option to skirt massive traffic jams on I-495 a few times, and it's been very helpful.
The only real screw up the device has ever had was in eastern NC, when we were hacking our way from Greenville to Elizabeth City. It suggested a right turn squarely in the middle of a cotton field. As we passed it, it recalculated and did not lead us wrong for the rest of the trip.
The Nuvi's are not perfect devices, but changing a few options has gotten rid of 99% of my personal irritations with it. I have zero experience with MS Maps and Streets, so I have no point of comparison.