Repetitive smashfest. Lots of destruction, but not that much fun.
The openworld/sandbox stuff is a double edged sword. It's cool to fight hellicopters and large foes in a huge destructible city. That almost goes without saying, but you soon grow tired of the same environments. The buildings all look the same, and there should've been more variety. Because you're litteraly just running around in the city, smashing stuff. I would've liked a change of scenery, maybe entering buildings, laboratories and such. You're only spending time in a building in the very beginning.
The big question however is this: do you feel like the Hulk when you're playing the game? Actually, yes and no. Yes, you can leap from building to building, over several feet long gaps. But the combos feel pretty weak. (X)(X)(Y)(Y) That's the combo you'll pull off again and again...and again...and again.
Missions are repetitive. Boss fights range from cool to tedious. And the city is a fairly boring place. However, as with many average moviebased videogames, it doesn't overstay it's welcome by much. The first hour is quite fun, then you grow tired of it, taking a break. You return, it's fun for a couple of more hours, then grow tired of it, and a few hours later it ends. It's nothing memorable or anything, obviously. It's over quickly and you probably won't play it again, but you will have some fun while it lasts. And...you get to play as Abomination if you finish the game. Which is fun for a couple of minutes.