For motorhomes, CoPilot is generally worth it if you set the correct vehicle profile, not the truck one by default.
I’ve used CoPilot (Truck/RV) and it does a much better job than Google Maps at avoiding low bridges and weight/width restrictions, as long as the profile is right. The key thing is that Truck and RV/Caravan behave very differently, which is why that question matters.
For a motorhome, most people get the best results with the RV/Caravan profile, even if the vehicle is over 3.5t. The full Truck (HGV) profile can be overly cautious and will often push you onto motorways or long detours because it assumes commercial delivery rules, tight turn restrictions, hazmat logic, etc.
My experience / general consensus:
Low bridge avoidance: Very reliable when dimensions are set correctly
Routing quality: Good overall, but still not infallible on rural lanes
Offline use: Big plus, especially in poor signal areas
Best practice: Slightly overstate height and width for safety margin
If you’re in a large motorhome (especially 3.5–7.5t):
Use RV/Caravan profile
Enter exact dimensions (or +5–10 cm buffer)
Only switch to Truck if you’re actually driving an HGV or towing something truly artic-like
And yes — keep Liz on lookout duty anyway

No sat-nav replaces eyes and road signs 100%.
If you share:
Motorhome height
Weight (approx or plated)
Length
I can suggest the best exact profile settings to avoid the usual CoPilot annoyances.