Sadly, Quantum Break's gameplay is essentially divided equally between combat and hapless environment traversal. Given that the entire campaign can be completed in less than 10 hours--live-action episodes included--the distribution of activities feels that much more disappointing. Even if you go back and change your decisions--such as preventing a character from dying--your path essentially remains the same, albeit with a few minor elements remixed to hint at your agency over its plot.
By the end, you know the most important parts of the story. Replaying it to witness slightly altered events in the middle would require you to retread well-worn, sometimes boring territory for little payoff. Getting to the end of Quantum Break can be an interesting ride at times, but no matter how impressive the combat is, or how great the game looks, there's no getting around the fact that it's driven by a story with limited appeal and hindered by disappointing design decisions.