Is a truck-specific GPS like the dezl OTR610/620 needed for a large pickup or RV?

r/Truckers threads in the signals suggest the dezl's custom routing is genuinely useful for class 8 trucks and oversize loads, but multiple drivers warn it sometimes adds miles or routes to closed exits, and that local deliveries still benefit from cross-checking against another app. For a standard dually pickup or smaller RV, several owners say a regular DriveSmart is adequate unless you frequently face low bridges or weight-restricted roads.