are they doing FAntasmic every night when you're there...if so, then no,I don't think the tickets are worth it. If they're doing F! every night, you can show up an hour before the show starts and get seats.
We were very disappointed with the set-up last week (Sept. 2011) They've changed the entrance for the Fantasmic seating (AGAIN!) and now they have you walking about twice as far to get to the same seats as before. We had to walk way past the regular Fantasmic entrance, and then once in the gate,we doubled back across the regular line, then back behind the wall, and finally back into the area the reserved seats have always been (right hand sections as you face the stage area.) They added showings after we had got the dinner reservations, so the place did not even fill until about 15 minutes before the show started.