I spent a couple hours tonight using the unit around town on some errands. Most of the time though I spent having the unit calculate routes and comparing them to my smartphone Google Maps and TomTom for Android.
First, there is definitely a difference in routes and ETA between car mode and RV mode. It is doing something more than just warning you of RV related "issues" with your route while you drive. In a few cases, even if the route was the same in car mode and RV mode, the ETA was not. That stands to reason. There is a 5-level adjustment to the ETA when in RV mode. You can pick to have the 7725 display the ETA as calculated or adjust the ETA longer or shorter in two steps each way. It will take awhile to learn which is appropriate for my personal driving habits.
There were times that my test routes on the 7725 picked a completely different route when switching between car mode and RV mode.
I continue to find the ETA's of the 7725 to be very, very good, especially in car mode. They are right on what TomTom calculates and very close to Google Navigation. I caulk this up to Navteq data and the additional of Navteq's historical speed database, which appears to be growing quickly.
Tonight I saw speed limit coverage on several in-town local streets that are not part of any highway system. These were 35 mph roads. I also got a curve warning on a local street.
Lane guidance and freeway sign imagery popped up on a couple routes tonight. As expected with Navteq data from my Garmin experience, it was accurate.
I am finding the 7725 to be a worthy device so far.
If you are on the fence about the Rand McNally devices I'd encourage you to spend some time reading Amazon reviews. There is a BIG difference in the sentiment of reviews between the 7710 and earlier devices and the 7720 (which is what the 7725 essentially is).
