Klopp will be facing Simeone's side in a Champions League group stage fixture on Tuesday at the Wanda Metropolitano Stadium.
And with Liverpool going into the game as favourites, Klopp who guided Liverpool to a Champions League success in 2018-19 season says despite having maximum respect for Simeone, he has never liked his tactics at the Madrid club.
"Diego Simeone is doing absolutely everything right," Klopp said at his pre-match news conference on Monday.
"He is the current Spanish champion. Very successful at [Atletico]. He has a bunch of world-class players, keeps them on their toes, they fight with all they have for their lives.
"That says a lot about the quality of Diego so I couldn't respect more what they do.
"Do I like it? Not too much but that is normal because I prefer a different kind of football. That's me. Other coaches prefer different styles of football. Nobody has to like it, it just has to be successful and that is what Atletico is for sure.
"They are still the result machine they were before," Klopp said.
"I am a very positive person, but I am not that positive or naive that I think we have these games already in our pocket.
"They have changed players and system so we face a different animal, but not a weaker one."
