The midfielder admits it was strange to return to the Etihad as an opposition player.
The Reds were highly impressive on Saturday evening, as they put in a top display to secure a 4-1 win.
The attacking trio of Adam Lallana, Philippe Coutinho and Roberto Firmino were the stars of the show as they put the City defence under constant threat throughout the game.
It was a exception display from the side as they created a number of chances, and were ultimately unfortunate to only score four in the game.
Their first half display was what ultimately sealed the win, and Milner says they were first class.
“I thought we were top-class in the first half; in the second half, we probably didn’t play as well but still defended well and created a few more chances,” he told Sky Sports.
“I thought it was a really good performance and pleasing the amount of chances we scored – and when you are disappointed that you could have had more, then that is a pleasing thing.”
The midfielder also admitted that it was strange to return to the Etihad as an opposition player.
Milner spent five years playing for City after joining from Aston Villa, winning several titles and other trophies in that spell.
He only left in the summer to join Liverpool on a free transfer, and still has friend at his old club, but says his focus was firmly on the Reds as he stepped onto the pitch.
“It always strange coming back to a club when you’ve been there a long time, five years is a long time and I made a lot of friends here,” he added.
“To come back was strange but once I stepped on that football field it was all about getting the three points and luckily we did that today. “