I have used a Garmin since 2004. Currently a Nuvi 1390 for the toad & coach as well as the 760LMT. I don't go anywhere without one or both being on.EVEN in my own neighborhood. The 760 replaced the earlier RV of the same size when it was not possible to update any longer. Both now have lifetime MAPS & TRAFFIC. Both were updated in Oct. 2015 before my current trip. Have had no problems until this trip. thinking seriously about doing something else.
Was on the Oregon coast, Newport, and headed to Coos Bay. The 760 wanted me to go East to I 5, then South and eventualy West to Coos Bay. This was MILES & HOURS out of the way. I have done this trip many times and my Nuvi had no problem going right down the 101 so I went. At every oppertunity, even some dirt roads the 760 instructed me to turn around and go back to Newport & follow IT'S instructions. Eventually after many miles it gave me a low clearance warning. I chose to ignore it & continued on following the Nuvi. As we neared Coos Bay the 760 gave up deciding this was the way I was going to go. Called Garmin and gave them the details. I found out that I should have taken "screen shots" using the camera ikon in the upper right corner and sent them the informatiom, at the time I did not that. I asked Garmin to duplicate my trip, they could find no problem. Without the NUVI or my own knowledge I would have gone hours & miles out of my way, and to say the least would NOT BEEN HAPPY.
A few other little things on my way to San Diego where I was born & raised. Then it started to direct me off the freeway & at the bottom of the ramp then directly back up the on ramp??? Several times there was also a short 2 or 3 block detour then back up the ramp.These were not new changes to the road and there was no reason for it, I am & was on those roads for years and there were NO CHANGES.I have now traveled from San Diego & presently am in Natachz TN. There have been a number of strange problems along the way. Both units are updated with current maps but find a big difference in them. One can find Home Depot wthin a few miles, the other says over 200 miles. can find a city in on , not in the other. I I dont find a reason to keep the 760 may try to get rid of it and look a Rand McNally RV model. I like the 760 but now have many doubts.