Satnav - Garmin Camper 760 v Snooper Ventura

Meadow 49ers

we are thinking of buying a "caravan" Satnav as our Landrover Satnav is useless repeatedly trying to send us down tracks despite setting it to major roads only. The two mentioned above seem to be favourites, especially as we are about to tour Europe. Garmin
is the cheaper option, any suggestions ??