"It was fun," Roundtree said. "It's a really tight-knit family there. That's what I like about Auburn. What really stood out to me was how close the coaching staff was with each other. They really care about their players. Everybody has a nice facility and the little things, but it's the way the coaches treat the players that stood out to me.
"It really exceeded my standards," he added. "They really went the extra mile to treat me well and it shows."
Hoping to cut his list down dramatically over the summer before taking some official visits during the season, Roundtree said Auburn made a big move for him after seeing the campus for the first time on Saturday.
"I really haven't narrowed it down," Roundtree said. "It really puts Auburn up there towards the top. The others would be big schools like Alabama, Georgia, Ohio State, Michigan State, Florida, teams like that."
Being recruited for the Tigers by Coach Charlie (Cheese) Harbison at the safety position, Roundtree said one of the big advantages for Auburn at the moment is a huge need at his spot moving forward in the 2015 signing class.
"That means a lot," Roundtree said. "Just have a school that really needs safeties and knowing that they want me and are really coming after me, it means a lot."