[Nanaeve]

We purchased one several months ago and love it. You can program the parameters of your vehicle in to it, Height, Weight, Length, Wideth, Etc. We programed our as a locale delivery, with the idea that that more closely matches our vehicle type rather than the "over the road" type. That being said, we have not driven that much, as we just got our unit back from repair in Sept. The unit show what lane you need to be in also, to prevent needs to suddenly change at the last minute. It's not as loud as we had hoped as our Endura on the International Chassis is a little noiseier than Class A's. Just be sure to enter the "Measured" not "Book" as we found our unit to be taller then GS indicated. I installed our's next to the rearview monitor then covered the "front" side as seen from the outside of the vehicle and its not something you notice at first.