There is someone on this forum that has the Tom Tom RV GPS. Sooner or later he should see this and respond. I know that he has said how much he likes it and had the Garmin and the Rand McN to compare it to. He kept the Tom Tom and returned the others.
I have a Tom Tom built into my dash - not by choice. It is not an RV model and it is just OK. I have a Garmin in my car. There are pros and cons with each. The Tom Tom likes to go where it wants despite a simpler and shorter route in a straight line. The Garmin does not store pre-routed trips as well as the Tom Tom does. The Tom Tom that came with my new RV was no longer supported by Tom Tom - no firmware updates and the traffic feature built in was no longer supported by Tom Tom and non-functional (I spoke with Tom Tom service many times about this with no satisfaction). Plus Tom Tom will not sell a lifetime map add on as Garmin will do for units that did not come with lifetime maps. Tom Tom wants over $100 a year for a map subscription of four to six updates. Garmin will sell you a lifetime map subscription for $79 which is deeply discounted at various sales sites.
The Garmin and the Tom Tom RV models are similar in their limitations - both do not have a propane setting to avoid propane restricted roads, tunnels, and bridges. The Rand McN does. The Garmin Dezi 760 truck GPS does have a hazardous materials setting which works for propane restrictions. The Rand McN has no traffic routings unless you connect a cell phone with a data plan to it and use your data to get traffic alerts and only with an optional traffic cable.
Garmin needs to put the propane setting in their RV GPS and they would have an all around winner. But they don't seem to have any intention of doing that.
