That trailer does pull great. I currently have a 2001 Silverado 2500HD with the Duramax/Allison combo and love it. I have a couple thousand miles on the trailer already and am happy with the setup. Previously I was hauling Holly on a bumper pull car hauler type trailer, but she is close to the max of that trailer so I upgraded. I found a great deal on the gooseneck, and it is very heavy duty. It was custom built for me. I had them add the twin jacks (one is standard), locking tool/chain box, spare mounted on gooseneck, and a plate where I will eventually add a winch.
Mark