Chuck is one of my favorites and I do them quite often. A chuck roll is a much bigger cut of meat than a chuck roast, although the way you do it is similar. It works well to foil for the last third with onions and garlic and a little liquid added.
You'll also get a fantastic pot roast if you smoke a chuck roast for about 3-4 hours, then into the dutch oven with some stock, wine and veggies.