Hit - VAR
You can look at this either as a hit or a flop, but the argument for VAR being a hit in this particular instance is that it ruled correctly in the most crucial refereeing decision of the game.
On a couple of instances, it seemed like Manchester City may have had a penalty, but VAR chose not to overrule the referee. However, when it came to Jesus's goal in stoppage time, it correctly spotted a glancing inadvertent handball from Aymeric Laporte in the build-up, which by the new rules dictates that the goal must be disallowed.
In the large scheme of things, it also deprives City of two points in a crucial game early in the season which, though cruel to the defending champions, keeps things interesting from a title race point of view.
It allows for the speculation around other sides challenging for the title early on as City make their slip-ups early on and others remain perfect.