Ireland coach Joe Schmidt expressed his satisfaction with the 55-19 win over the USA at Red Bull Arena in New Jersey on Saturday.
Ireland ran in eight tries to USA's three in a delightful display of attacking rugby. However, their sloppiness on defence resulted in them conceding three soft tries.
And Schmidt believes some credit must go to the USA for making them work for the victory.
"The US got into our space really well and made us work hard. I thought we also got to the space quite a few times. Particularly Joey [Carbery], he got to the space with his cross-kicks because they were up and in at us.
"Keith Earls usually wants to get the ball all the time. I think after the first 20 minutes he didn't want it anymore. He'd already run far enough."
New Zealand-born number 10 Carbery showed some his creativity and flair on attack with some good touches with ball in hand but twice had clearance kicks charged down leading to tries for Eagles forwards Civetta and Quill.
The 21-year-old Leinster star was replaced in the 51st minute with an ankle injury and Schmidt is not sure as to the extent of the injury.
"I think Joey will keep learning from that," he added. "For a guy that has played very little at 10 all season, it's very hard to put yourself into what is probably the pressure position and make all the right decision.
"I thought he made some really good ones and created a fair bit of play for us. He's learning from the things that didn't go so well.
"Joey just sprained his ankle a bit chasing across the pitch. He just went to turn back.
"We thought it pertinent to get him off. We don't know what the story is yet. It hasn't really swelled too much but it was a bit tender so we'll see how it settles and maybe get a scan, either here or once we've arrived in Tokyo."
Ireland take on Japan next in a two-match series.