My Canyon Trail is 31' and came with a solid built factory receiver hitch. I tow a small trailer, about 12-15 hundred lbs when loaded with motorcycles. I have 5,200 lb axles and frame/springs that allow a huge CCC. I do feel the effect of the added trailer on bumps, bridges, etc.
While my factory hitch on FW rear is well built, very solid, across frame, with heavy square tubular steel, it is only rated for 300 lbs tongue wt.
Mine is very well insulated (advertised 4-season) with good quality, dark tinted, single pane safety glass.
Jerry