It could have a few more RV-specific features (e.g. I wish the TomTom would easily show the difference between the suggested RV-mode route and the car-mode route. The 1605M also has accuracy, user map correction capabilities, uncluttered display, fast re-routing… all in a 6-inch screen! We travel quite extensively with a B+ RV in both Canada, USA, and Mexico (over 50,000 miles in the last 3 years) and the TomTom VIA 1605M RV GPS has already proven its worth, and will continue to do so with Lifetime Maps. I was so happy to find -while traveling in the US- a TomTom with RV mode (which is not available yet in Canada). But it did not have a RV mode… so I purchased and used a Garmin GPS that had car and RV/Truck modes… with more or less satisfaction. I have used a TomTom Go 920 for over five years and always liked it: accuracy, clear clean (uncluttered) display, etc.