Villa in the Championship in England signed McGinn from Scottish Premiership side Hibernian in the summer transfer window.
The 23-year-old midfielder has admitted that he did not realise just how big Villa were until he moved to the former Premier League club.
McGinn told The Sunday Post: “Looking on from afar, I always had an idea Aston Villa were a big club. But now realise I misjudged it – they are a massive club.
“The training ground is out of this world, and the stadium has that old-fashioned feel about it, a proper, traditional stadium.”
McGinn made his competitive debut for Villa this past weekend, as the former Hibernian midfielder featured in the Championship game against Wigan Athletic at Villa Park.
The Scottish youngster was superb for the Villans, who got the better of Wigan 3-2 this past Saturday afternoon.
The former St. Mirren star is still developing and progressing as a footballer, and McGinn is only going to get better in the coming years.
Villa are aiming to win promotion from the Championship to the Premier League this season.