I like co-pilot. I really like the fact that it has RV specific settings for height and propane retrictions. It also allows you to specify your road preferences. I bought a used 1st generation Google Nexus 7 with 32gb. I downloaded all of the USA maps and it's ready to go at any time. If you are getting a tablet, get one that has a GPS receiver in it. Most of the better android tablets have GPS receivers. While I am a Mac guy, I got the Nexus tablet so the can easily run OBD II programs connected to a Bluetooth dongle at the same time. So, with the one tablet connected to my stereo, it is my GPS, my music (downloaded songs), and my engine monitor. It works for me and was a lot cheaper than the price of a RV GPS. By the way, you can try the voice guided directions free before buying it for $7 (right now). Just make sure that you get a good car charger and cable that is designed for android tablets and puts out the full 2 amps to the tablet. Otherwise, it will die on you even though it appears to be charging (cheap chargers and/or cables will only put out 1amp).