Yes...definitely advise making an ADR. Year's ago it did not seem to be as popular, and they did not take ADR's and you did not need once. Then it seemed to catch on and we were turned away on one occasion. I believe that trip though, we were able to make an ADR for later in the same week...but the room is small, and they only seat for 2-3 hours a day. It remains one of our favorite activities.