I've also been looking at a new GPS and based on the recommendations of others I took my the old 10" Asus tablet that I replaced for my wife and downloaded the co-pilot app. Took a bit a effort to find an acceptable mount but it's now up an running in the MH. Have not yet made a trip but so far I'm underwhelmed after using a Garmin.
I'll give is a good try when we leave for the summer but the data base isn't very good nor is it as easy to use compared to Garmin. I may upgrade it to the RV version before we leave for the summer but overall at this point I wouldn't recommend it anyone. It just happened to be free and it does seem to be OK following the route.
FYI, it has WiFi but not have cellular.