*minor spoilers*
Graphics are pretty great, but it's not really that different from Prototype 1 so far, and I just got to the third island.
But there's 1 thing about it that's very annoying; there are several instances of "camera zoom events", for example, the camera suddenly zooms into specific areas of a mob you're supposed to hit -- and this pauses the gameplay in a way, and it happens a lot. Which areas of a mob to hit, where to go, who to consume, and these interruptions are very, very annoying when you're in the middle of a huge fight (You'll be fighting a lot.) -- it breaks up the flow of the gameplay.
It's been awhile since I played Prototype 1, but I was disappointed in the lack of new abilities/skills in this game. Very disappointed. The only new thing seems to be the Tendril thing, which is split up into 3 (So far.) abilities; grab someone and hit Square on PS3 and they'll tendril lots of stuff around them; hit triangle + circle and you'll do a massive tendril burst (Devestator.), and the normal attack which you can map to either square or triangle; hold whichever button you mapped it to for a little while and they get a much longer reach, or you can just press the button and you'll hit whatever is pretty much directly in front of you.
I think there's still 1 ability I haven't gotten yet though.
There are also some "skill trees" that lets you upgrade various things like health, damage (Melee, ranged weapons, tanks, helicopters, etc.), speed, jump height. You have to finish side missions, or find items, etc, to upgrade these in most cases.
