I made a batch of pumpkin brioche last Thursday using egg substitute and canola oil. I baked 1/2 the batch on Friday, which was probably too much for the loaf pan, being over 2 1/2 pounds, but the loaf was spectacular. It took longer to bake, of course. I used the amount of spices recommended in the book--not overpowering, but very good. Depends on what you are going for. I made muffins with the dough on Sunday, and they turned out well. Today I used the last of the batch, about a pound, to make a small cinnamon-craisin bread. I rolled the dough out into a rectangle, mixed some sugar and cinnamon, sprinkled it on the dough and threw on some craisins and rolled it up.
Turned out great.