I did HDDR with a friend. As long as you are comfortable having dinner by yourself, you will be fine. The entertainment takes place as you are eating so there isn't any downtime where you are just sitting there looking around. You will probably be seated to the side. If I remember correctly, the tables in the center and toward the front where most of the action takes place are for larger groups. Make sure you give yourself time to walk around The Fort to see all the decorations. I was there right before Thanksgiving and people were already decorating. The long-term campers go all out for the holidays.