The Anfield boss handed Fernando Torres, Ryan Babel and Yossi Benayoun their debuts in Tuesday's 3-2 friendly win over Werder Bremen, but it was Andrei Voronin who stole the show.
The Ukrainian striker netted his first goal for the club, after signing on a free transfer from Bayer Leverkusen, after just four minutes and he helped himself to another in the second half.
John Arne Riise was also on target for the Reds, but Benitez was full of praise for his summer squad additions and the attacking dimension they have brought to Liverpool.
"I was pleased to see us score three goals and it was nice for Torres, Benayoun and Babel to play their first game for us," Benitez said.
"You can see the different options we have now in attack. It was good for the supporters to see us attacking and playing some good football.
"It was not so good for me as a manger to see us conceding goals but there were many positives."
Meanwhile, Benitez has decided he will be allowing Javier Mascherano additional time off before the new season.
The Argentine midfielder has only recently finished participating in the Copa America and Benitez has said he will excuse the 23-year-old from Liverpool's forthcoming tour of the Far East.
"Mascherano will have 10 days off but, when he returns, he will stay at Melwood with the reserves," Benitez said.
"There would be too much travelling for him to come with us to Hong Kong , we don't want to kill the player before the start of the season."
Mascherano is expected to return to action in the friendly with Shanghai Shenhua in Rotterdam on August 3, eight days before Liverpool kick off their Premier League campaign away at Aston Villa.