How is the Ford (Class A) chassis supposed to handle?

I've had a 36 ft Tropical and now have a 2015 Tiffin Allegro on Ford F53 chassis. Both coaches drove as well as any of them. Before I bought the 2001 Tropical, I drove 3 different DPs. The gasser was just about as good. I think that driveability depends on how the coach is built by the manufacturer. Best advice is to test drive it before you buy it. BTW, I never felt that any chassis modifications were necessary.