I pulled my 350# trailer all over MT, WY, ID. , mountains, switchbacks and slab riding, it's a bit slower to get going and to stop. Fuel mileage takes a hit.
I pushed it hard going over Beartooth and Chief Joseph Hwy with no problems and on 287 between Jackson Hole and Riverton, Wy there was 20 miles of deep mud where they tore the road out, we were leaving 4" deep ruts, I think the trailer helped to keep the bike tracking well. Mind you this was all 2-up riding. I hope to NEVER encounter another road like that, it was a white knuckle ride the whole 20 miles
So yes the Venture is a Great bike to tow with.