Do I need reservations or do they take reservations

Preferred but not required

Yes

Depends on the size of the group in the time you're going. I tend to visit right after work, enjoying a cocktail and dinner at the bar as a solo diner. However, when I bring my boss or my family I want them to have the best experience so call ahead. The ribeye at Chops is the best in the city in my opinion.

Mr. J. Jingle's response was the best. RESERVATIONS are, "preferred but not required".

Not required

If you want to enjoy one of the finest restaurants in Atlanta, then I suggest a reservation to insure an excellent experience

Best to have reservations!