I've been eyeing the Impofu as well, but at that price you have to come to terms that you are paying $200 for the usefulness of the knife, and the other $400 for the fact it's a beautiful object made by CRK.
If you goal is practical woodsman tasks, you could buy two (or perhaps 3) totally functional, and gorgeous, Bark River Goloks for the same price, that have a fantastic convex edge that simply murders wood. I do the kind of work you describe from time to time with my Golok, and it's fabulous. Having said that, I still want an Impofu, but doubt it will process wood better for the extra money.