Wasps director of rugby Dai Young hailed his side's effort after they kicked off their Champions Cup campaign with a 33-6 away win at Leinster on Sunday.
The English side delivered a superb allround performance with forwards and backs combining brilliantly on attack but also impressing with a solid defensive effort.
"They had a lot of ball and I was really pleased with our defence," said Young.
"We really held out and frustrated them into making mistakes.
"It was a great performance for us. We’ve had some big ones at home but rarely have we come away and played like we did today.
"It was full of heart and desire. We talked about keeping our shape, winning the collisions and not being too concerned with committing to the tackle area after we were taught a lesson here last year and came off second best."
Young expressed his delight that his team achieved several of the goals which they set for themselves before the game.
"I don’t think the gap on the scoreboard was hugely reflective," he added.
"I’m just pleased that what we talked about – being physical in defence, clinical in attack and earning the right to play by getting quality set-piece ball – we were the better team today."
Despite, the victory Young is aware that his team will have to deliver similar performances in their remaining matches if they want to advance to the tournament's knockout stages.
"We know how tough this group is going to be and it’s only one game," he said.
"It was our day.
"We caused them problems last season and were already a good squad, but we’ve added a bit of stardust in George Smith and Charles Piutau.
"We deserved it, but we have to back it up next week and if anything is going to sober you up it’s Toulon coming to town."