Shaqiri completed his £13m move to Anfield on Friday, putting pen to paper on a five-year contract which will keep him at the club until 2023.
"I think the English phrase to explain the decision to sign Xherdan is a 'no-brainer'. When someone like him becomes available in this way you have to react if you are smart - and we have," Klopp told the club's official website.
"He has speed and ability, has the right amount of arrogance on the football pitch, real bravery to want the ball and influence things. To play for us these are mandatory requirements.
"We are the perfect move for him in this moment as well I think, because he needs to push himself and challenge himself and our environment encourages that.
"I know him well from his time in Switzerland and especially Germany - I have been a long-time admirer. But the added bonus now is that he knows the Premier League and what it takes to perform in this uniquely intense environment."
Shaqiri could make his competitive debut for Liverpool at home to West Ham United on the opening weekend of the new Premier League season.