I replaced my Garmin Nuvi with a Garmin Drivesmart 50 LMT. It has the lifetime map updates and live traffic. It is cheaper than the RV specific GPS systems, which also look good. I like that this GPS changes to a split screen when approaching exits to give you a visual image of where you need to go and the fact that it tells you graphically what lane you need to be in. I don't depend on it to give me a route. I use Google to roughly figure it out and then use Garmin Basecamp to come up with the route and send it to the GPS. Works great. I use my cell phone GPS a lot, but for longer trips I much prefer the Garmin.