The South Americans, who have scored 12 goals on their way to the final four, will face South Korea in the semi-finals of the competition on Tuesday.
Menezes told FIFA.com: "We've put together an excellent side for this competition, but not without a few problems obviously, because we still don't have a specific Olympics project in place.
"Even so, and although we've only had a few games, we've managed to produce some good football in a short space of time, thanks to the quality of the players. There are always tough games to be played in a tournament and you need to be aware of that.
"There are days when you're not on top form and your opponents play well, but we've found a balance between attack and defence, we're creating a lot of chances and scoring an average of three goals a game. That all makes me happy."
Should Brazil progress, they would face either Japan or Mexico in the final.