Finished it.
I would give it a solid 8/10. The takeaway here is for an 8/10, for the right person this could be a 9/10 as Metacritic shows there were several.
Bottom line, I would say its a thrilling, fun, but flawed experience. There's really nothing like it in terms of flight, and, wait for it. "feeling" like Iron Man. lol. Sounds dumb but it's actually true. If you ever wanted to suit up and have that feeling of dominating enemies in the suit, this could really be the game for you. The control you feel in the sky and maneuverability once you really grasp it is second to none. Zipping over an enemy with one hand thrusting while blasting with the other while it is searching to track you? Holy shit.
The skill gap between 2 hours of experience and 4 hours is like a completely different Iron Man. I played on hard, and I felt like a complete badass. There's a big skill gap and room to really "grow" in the suit. COME AT ME after 5+ hours, whereas before with the demo, I was like Iron Man in the first movie, a clunky noob. I was decent at flying in the demo, but flying and shooting effectively without taking damage? That's a different level. But I think most people will miss that just to finish it.
So why not a 9/10? The story was average, some of the missions/enemies were repetitive, and load screens. Basically, it had a bunch of small problems, annoyances. Solid entry though, and something I don't think should be missed if you own a PSVR. Top 3 game.
I took my time and just enjoyed it. Played on hard. I will get about 30 hours out of it total when you add the challenge stuff and another playthrough.