The Beligum international made his debut for the Toffees as a substitute in Saturday's 3-1 win over Aston Villa and came close to scoring with his first touch.
And David Moyes’ right-hand man praised the 24-year-old's qualities before hinting he could make his home debut against Leyton Orient in the League Cup on Wednesday.
Round told reporters: "[We are] very pleased. He is a very fast, sharp player that gives us a different dimension. He will run in behind and he's very alert.
"We have to be a bit careful because he has come from Greek football and in the Premier League it is difficult to settle and it takes bit of time.
"I think we are prepared to give him that time and bring him along gradually. First impressions are pleasing and it looks like he will be a very good player for Everton.
"I presume he will feature at some stage. If he doesn't start he will obviously be on the bench. It is a good opportunity to bring him in and around the team."
Whilst many clubs often use the League Cup as a chance to rotate their squads, Round expressed his belief that Moyes will pick a strong side on Wednesday.
He continued: "We take this competition seriously, we really do. It is an opportunity to win silverware. It will be a strong team that we put out, whatever 11 is selected.
"In football on any given day any team can beat anybody, that's the beauty of the game. They [Orient] are not a team we take lightly. We have prepared the same way. We will pick a strong team and we will show them respect.
"It is the way Everton do things, it is the way the manager does things. If we play to our potential we should go through and we should win.
"There is always that little element of doubt and that's the reason why you respect you give the opposition."
Round also discussed Everton’s impressive start to the Premier League season - which has seen them post back-to-back wins against Manchester United and Villa -insisting that a settled pre-season has helped Everton to begin well.
"We had everybody here and ready to go,” he added. “Everybody is fit and previous years we have not really had that.
"We seem to be a lot more settled this year. We had a seven-week pre-season and gave the boys four days off in the middle. Having looked at it as something we should adopt, it went very well."