I'm another one with no problems using the RM 7725 in my motor home. I've used it for 8,000 miles in unfamiliar terrain. No problems with glare or difficulty seeing it in bright light. I do have problems seeing the motorhomes instruments in daylight so I use the RM as a speedometer. Last big trip I caravanned with some friends who were using a smart phone app. Both sent us on the same routes. I always used a Garmin in my car. The RM takes information differently and there was a learning curve. Now that I am used to it, I like it better than the Garmin.