As a big 3D buff who knows what good 3D looks like, the 3D here is absolutely stellar, the thing is, a lot of 3D haters are just saying "yeah don't notice it", good 3D is perfectly natural, it blends in, you dont need to be reminded of it every single time.
The depth here is this, perfectly natural, like Prometheus (shot with Red Epic as well), it feels natural, unobtrusive. And to those who say that you dont notice it (they're saying the same thing with every 3D movie but whatever), I'm telling them "remove your glasses and watch", flat vs depth, I had movies where I was telling myself "3D isnt great, lets remove the glasses to see" and I just miss it then.
The 3D is up 10.000 notches in the action scenes and webslinging scenes obviously, and it looks superb, Spidey coming out of the screen, pop out instances, the first person stuff looks insane (wish they had more of that).
What more can I say?! Good 3D is natural, I do like pop out stuff more, than it's not what this is about here, you can get this with Haribo ads or such, or cartoons, or animated features, but it's about depth, immersion, getting immersed in the world.