Haven't seen this guy in anything, so it wouldn't be fair for me to judge on that front.
In terms of looks, he definitely has a 1960's Peter Parker vibe going on in the face. But overall he looks a bit... chunky. Not fat, just husky. Like he is naturally disposed to a big build. I was kind of hoping for a skinny Spider-Man this time around.
Voice-wise, I think he works. Imagined his voice coming from Spidey's mask and I definitely see it, or hear it rather.
I guess if this turns out to be true, you'll have to put me in the "wait and see" group until we start getting pictures and footage. I have plenty of reservations as it is in regards to this project, so I won't write this guy off just yet. I still think Yelchin would've been perfect. As good as this guy could turn out to be, my stand on that will not change.