Not what, but who. This Kickstarter by the looks of it is going to be a success for a number of reasons. And then several months from now, we are going to be getting the Beta version of the PDF. It will be looked at from front to back by those who will look it over and read it. We'll offer them our opinions and our critiques. They'll make adjustments based off of we say, and then they'll make the final version.
Will it be perfect? No, there will be several somethings about that we won't be crazy about. But we can homebrew something to fix those issues. Will everyone like/love it? No, there will always be someone who won't and will think that they wasted their time and money on seeing the Kickstarter through. Will we borrow what we like and use it elsewhere? Of course!
Great is what you make of it.