"They love their sports around there and they love their football."
Additionally, when the 6-foot-1, 215-pound linebacker visited in May, Mastromatteo was accompanied by Charlie Roman, Absecon (N.J.) Holy Spirit's head football coach. Thus, this weekend was his parents' first up-close view of the campus.
"[My parents] were blown away by the facilities, the coaching staff, the stadium – and just everything," Mastromatteo said. "They loved it and they didn't want to leave."
Already firmly committed to UNC, the official visit did nothing but further solidify those feelings.
"It really got me excited," Mastromatteo said. "Being there and watching the game and seeing the team run out of the tunnel, it just got me really excited. I can't wait until I get down there."
More than anything else, the official visit made Mastromatteo, who backed off his verbal commitment when Butch Davis was dismissed but re-committed a few days later, feel more comfortable about the situation at UNC.
"Coach [Everett] Withers has done a great job keeping everything going there," Mastromatteo said. "It really seems normal around there. I love it.
"They say you shouldn't pick the school because of football. For me at least, it really met that. Without football, the school is still so great and everything is so great about the community. I could see myself going there no matter what."
With Holy Spirit on a bye week, Mastromatteo and his family arrived on campus on Friday afternoon. He spent most of that evening with Art Kaufman, UNC's linebackers coach and defensive coordinator, including a brief film session.
"He's a great coach and I can't wait to play for him," Mastromatteo said. "We were just watching film on what they're going to be doing for Louisville. He showed me the game plan for Louisville and how they work their defense.
"He really wants me to learn all three [linebacker] positions. He said wherever I could play earliest, I'll play. And he said I'll be a contributor on special teams, too."
On Saturday, Mastromatteo got to see that defensive game plan used in a near shutout victory over Louisville.
"They started off a little rocky in the first [half], but they put it away in the second half," Mastromatteo said. "If not for the late touchdown, they would have had a shutout."
Following the game, Mastromatteo spent time with player hosts Pete Mangum and Jack Tabb. In particular, Mastromatteo enjoyed his time with Tabb, who recently made the transition from New Jersey to UNC.
"We know the areas that we live and we sort of know each other's schools," Mastromatteo said. "I was just asking him how he liked it and if it was hard for him to go down there [from New Jersey]. He said it was easy, because everyone is so nice down there. He said everyone just brings you in as a family and you're welcomed right away."
Before heading home on Sunday afternoon, Mastromatteo and his parents met with Withers in his office.
"We talked about the university in general, what you can do and what you can't do," Mastromatto said. "By Sunday, pretty much all my parents' questions were answered and all my questions were answered, so we just had a good talk."