Barry said of the former Chelsea midfielder: "Steve has settled in well. He had a few injury problems early on which halted his progress but since he has established himself in the team, he has done very well.
"He is a top player. He works very hard for the team and bites into challenges. And he likes to get forward and make an attacking impression too. He likes to get forward but makes sure he tracks back defensively too."
Barry also told Villa's website: "He is a good box to box midfielder who can link up play as well. Both parts of his game are very good."