We did this last Monday, and overall it was great. Worth the money? That's debatable because at $80 per person (even children) with no passholder discount, it's really pricey. If you have the money and want a super easy, convenient and comfortable way to watch World of Color, by all means do it.
The service was top notch - all CMs were super friendly and accommodating. I enjoyed the champagne (they offered me a second glass), my mom stuck with coffee because it was COLD and my girls loved the special drink and glowing cups. We were also each given a bottle of water while seated and then given a couple to take with us as well. Hot chocolate was available too, as well as the kids drink but with vodka. The dessert plate was overflowing. I enjoyed the cheese and bread the most. There were a couple of desserts I liked, but overall they were just ok; a little too pre-fab for my liking. My girls didn't eat a thing other than some bread and a bite of a macaron. I really think they should do a more kid friendly option. My girls would have much much preferred a simple ice cream sundae. So from that perspective, it felt like a waste.
But you can't beat the location and being able to watch sitting down on a chair with nothing blocking your view. There is no need to arrive early. Seating is on a first come, first served basis but there is not a bad table from what I could tell. The higher ones are a little better because of added elevation, but the low ones looked good too. I even wish we would have arrived at more like 9:30 (show started at 9:45) because we were cold (we got there at 9:15). It was definitely not sold out - there were a lot of empty tables and we were offered a front and center table despite arriving 15 minutes after it opened.
All in all, I have no regrets and enjoyed the experience very much. I have now done all WOC dining packages, some several times, and they are they way to go to avoid a long wait. The dessert experience certainly is the best if you want to pay the money.