Dedicated Truck Satnav showdown- The big three!

I am about to venture back onto the road as a tramper, after a long period of on site shunting (6.5 years) and am therefore looking for suggestions or personal user reviews of individual sat navs. Thi is because I haven’t used one for a while and so much has changed , not just with the roads themselves, but the capability of the sat navs also.
Any information would be greatfully received .

Thanks to all in anticipation of your replies.

Pedro. :laughing: