The Reds came from behind to seal a win over the Gunners.
Liverpool left-back was happy with the quality they showed in their 3-1 win against Arsenal on Monday night.
Liverpool maintained their 100% start to the Premier League season by beating Arsenal 3-1 on Monday night and defender Andrew Robertson heaped praise on their all-round display after the match.
Forward Alexandre Lacazette broke the deadlock in the 25th minute after the Frenchman capitalised on Robertson's mistake but the homeside responded in quick succession as Sadio Mane put one past Bernard Leno three minutes later.
Left-back Robertson increased the lead in the 34th minute as he finished off a cross from Trent Alexander-Arnold.
And, late on in the game substitute Diogo Jota wrapped up the win with a brilliant strike on his Premier League debut at Anfield.
"It was a fantastic counter-pressing game from us," defender Robertson told Sky Sports: "We all reacted when we lost the ball. We put them under pressure and forced them into mistakes. With the ball, we showed quality.
"We can't have too many complaints, other than my assist at the wrong end. 99 times out of 100 I clear that. The lads dug me out of a hole. A couple of years ago I'd have let that get to my performance.
"We showed a positive reaction. They've got a fast frontline which you need to be wary of. We dealt with them well and caught them offside a few times.
"We could have had a couple more. We'll take the 3-1. It's nice to beat your rivals and make it three wins from three."