Here's my unbiased opinion:
*Note: I haven't played yet. These are just observations.
First, the game looks stunning. I can't stress enough how much I love the graphics and art style.
Second, this game has limitless potential. At this point, I think anything is possible.
That being said, even though it is a hybrid/cross-genre videogame, it is a platformer before anything else. From what I've observed, the jumping looks EXTREMELY frustrating. Just from what I've seen. I know so many things are possible, but platforming plays a huge role. I couldn't even finish watching some videos because just WATCHING the jumping had me furious.