He was 'super proud' to play in a final against the Crusaders in Christchurch.
But in the final the Crusaders had won because they had only one chance to score and they got it.
"We knew it was a final in which we had to be clinical and to take advantage of any little opportunity. I think that's where the Crusaders were better than us. They really only had one chance to score a try and they got it. Maybe with the one or two chances we had we couldn't take them.
"The Crusaders were better than us in a lot of aspects today but I don't think the score was as big as it finished," he said.
Quesada said the kicking option the Jaguares employed was due to the Crusaders' defence but also the slippery condition of the ball. It had been the same for the Crusaders who, after a couple of early knock-ons had reverted to box kicking and that was where their try came from.
"Any turnover today was going to be complicated for the other team and I think that was why our kicking game was not as precise as it should have been," he said.
"But that was also due to the Crusaders defence. They gave us no time and they put us under a big amount of pressure and our accuracy was not there," he said.
The side had developed their play during the year and defence had been one of their key tools, their ability to score from moves prepared for first and second phase ball and counter-attack or turnover ball were others but other opponents gave them more chances than the Crusaders did in the final.
"It is not a coincidence they are the best team in the competition by far so we know that we came here to learn and we learnt," he said.
Quesada said it had been a goal of the season to keep on improving and the effect had been significant in Argentina and was good for rugby all around the world.