One of my buddies whose opinion I trust put around 10 hours into it and says it's pretty much everything fans have wanted in a new JSR. The graphics and music are on point, the controls are great, there's a lot to do in each area and stuff to unlock. He also said there's a lot more stringing moves together and it's got a bit of THPS with various challenges and trick combos which keeps the basic gameplay interesting when you're just farting around and exploring in the areas.
I'll get it on PS4 day one but I really wonder why they didn't just release for all platforms at the same time.