The 23-year-old Scotland international joined in a £2.75million from Hibernian last week and enjoyed an impressive Championship bow in Saturday’s 3-2 win over Wigan.
McGinn had already established a reputation as an exciting young player north of the border and admits the desire to prove himself on a different stage partly motivated his move to the Midlands.
“I think you can enter a comfort zone,” he said. “You have already developed a reputation somewhere.
“When you are ambitious, like I am, it is important to go and prove somewhere else that you can play. It’s something which excited me and is a big reason why I chose to come to Villa.”
He added: “I think I can bring something different. I think that was the main attraction to bring me here. I am not your typical central midfielder.
“I feel physically ready, mentally ready to take on this challenge.”
McGinn was an unused substitute as Villa beat Yeovil 1-0 on Tuesday night to reach the second round of the Carabao Cup.
The result means Villa have won their first three games of the season for the first time since the 1972-73 campaign, when they were managed by Vic Crowe.