In the past 5 - 6 years we have never had an issue when towing. However in France on one occasion the road had changed to a one way system and we were not towing. No map or anything else would have advised differently. We are very happy with our TT Go Camper, but obviously it is not perfect.
Yes And I'm sure there are many others who share your view.
After all everyone has preferences that are their own and I'm pleased to hear you are satisfied with your Go Camper.
The only message which I know you accept ("obviously it is not perfect" ) is the key to successful use of a SatNav.
I think Otherclive mentioned Basecamp at some point in a similar thread,
I too have a standard Garmin and use Basecamp to input routes that I've checked using Google (actually driven, as it were, some sections that appear troublesome) and I'm very happy with my SatNav when using these routes.
However, even here there are parameters such as using "tracks" or "waypoints" etc that if you are not familiar with Basecamp can be misleading. It's vital that you understand how the system works and put your "waypoints" in appropriate places to eliminate unwanted detours that the SatNav thinks are better!
My only reason for leaving TomTom in favour of Garmin was the removal of "Itineraries" from TomTom when they "dumbed down" their products some years ago. Garmin with Basecamp provides all I need for towing both here and in Europe ( Although you can't "drive a route" in Germany of course).
I rarely travel any distance solo and rely on the SatNav since detours through housing estates for a perceived short cut are always a danger.
Similarly if towing and I get a message to take another route to save some time (maybe accident ahead) I never take up the offer unless I can "see" it and know it's safe, simply because I would be relying on the SatNav's route and not my own.
Apologies if I sound pedantic but there's so much misinformation/advertising bias around the world of dedicated SatNavs that I get frustrated.
So pleased to hear you understand the drawbacks as I do.