I don't think an opinion can be true. The consensus seems to be that the controls and gunfights are easier, and I would agree that the controls are much better than U1. I found the enemy placement to be the problem. I was moving around the battlefield trying to get the best positions on the enemies and could easily kill the first wave. The second wave would always get me because I was in the absolute worst position as a result of the first firefight.
Also, the set-piece moments of the game are linear and stiff to the point of snapping under their own spectacle (again, IMO). You have to do exactly what the game wants you to do, and any deviation from this results in death. Take the building collapse for example. I died because I jumped too early in one place, and then too late in another. I had to hit the jump at the exact right time to survive. Sure, this makes for a great escape and moment, but it will absolutely rip you out of the experience if you have to repeat this over and over again just to get it right.
Again, this is all an opinion, and, like I said, I understand that I'm in the minority on this one. There are certainly improvements from U1, but I also found the game to be frustratingly linear as a result of the developers trying to design the most intense set-piece moments. They certainly created some memorable scenes, but I prefer games where I can think outside the box and try my own methods in order to achieve success. That's what I enjoy in games, and possibly the reason why I didn't enjoy U1 or 2.