As others have said, the RBT Premium Package is something you have to call and reserve specifically. There is only one seating per night (the website says 8:00 pm). From what I've read, you are pre-assigned a table, so you can't request a rail side or front row table at check-in. The view is so-so, but some folks really like having a normal chair to sit and watch the show from. The patio area is elevated slightly, so you can see over the guests standing/walking between you at the waterway, but some of the on-the-water elements may be partially blocked (I used to watch F! from that area before it became a dining package view area - back when RBT was a CS). There was a photo with the view in this
thread.
The other dining packages all have viewing areas in the front. Blue Bayou is the most centered, with RBT on the right (when facing the island) and HB on the left. Usually the dining packages areas are ground seating (although there were intermittent reports that guest had to stand for the first show). The Blue Bayou viewing area is the most centered and it does offer a great view of the show. If you're up in the front, you won't have anyone blocking your view, but the railing does get in the way. If you're further back, the railing is less of an issue, but you might have guests between you and the show. This is the view from the front of the Blue Bayou viewing area.