I just saw that one, my kid loved it
But for me it was OK.
My big thing is that I hate almost all zombie movies, but that one I really liked. The helicopter part is unbeatable! I went in expecting it to be just ok, and it was better than I thought it would be.
I was never really a Damon fan either, but the Bourne serious has really revived a dead movie genre of good SPY films. He doesnt make my top list, just a guy that has made better movies than i thought he would have. I permantly became a Ed Norton fan after American History X