I have used the dinner package about about 6 times now and I really do like it. The first time I went to Fantasmic, I waited in line about 1 1/2 hours before it started and never wanted to do that again.
Yes, you do pay a bit more for it, because stuff like an appetizer and dessert are included which I normally would not get, but you have to eat anyway, so might as well eat and then get a little something out it. You only have to go 30 minutes before the start of the show with the package, but I do eat really early then walk around a bit and arrive 30 minutes prior. This May, we had a 5:50 PS at Brown Derby. We watched the 5:30 parade and then went and ate. Fantasmic was at 9:00 that night so we were able to do a few things after we ate and then went to Oscars.