Dining package reserved seats are the center section... which is the best section to sit in. The earlier you get there, the closer to the front you can sit (I would advise against sitting in the first 5 rows or so, that is a splash zone, and your view isn't quite as good as being up a little higher). They eventually open up the section to stand by guests, so be sure to get there (at the absolute latest) by the time listed on the entrance ticket they'll give you at Hollywood and Vine. In general, we get there about 35 min before show time, and get seats in rows 5-10, which are great. However, there is always the chance that seats can fill up faster than "average" so to guarantee "best" seats, get there 45-50 min before show time.
They'll only charge the card you gave them if you are a no-show (and don't cancel by the deadline, which I think is 24 hours). When you get there, you can tell them you are on the plan, and will charge the plan accordingly.
It is always a character meal.
Food is good. Lots of variety. It's a fun experience. Great use of a dining credit.
Though, if I were paying OOP, I would rather pay for the Brown Derby Fantasmic package. But, I do NOT think Brown Derby package is worth 2 dining credits. We have the dining plan for our Aug trip, and booked the H&V package.