I just purchased the 395LM. I was using my phone with Google Maps. I lost service when I got out in the boonies at which point it left me stranded. Also I find creating routes in Basecamp much easier than Google Maps. I do us Google Maps or Earth in conjunction with it as Basecamp doesn't have a satellite view. Can't wait to get it and give it a try. I'm doing a Saddlesore 1000 over the labor day weekend. Should be a good test of its capabilities and functionality.