Tower of Terror and Rockin Roller Coaster are great, but the park doesn't have the same array of attractions as the other three in DisneyWorld. Here are a few tips:
You will need to arrive early at the shows to get reasonably good seats. Based on my limited experience 30 minutes seems adequate for most of the shows if the park isn't very crowded. Get there 45-60 minutes early for Fantasmic. Also note that the first few rows at Fantasmic will get wet, and there is no sign or announcement telling you this. Not SeaWorld wet, but you can expect a steady light spray during the water effects. There are restrooms and lots of concessions in the stands before the show.
The line for the Great Movie ride can get extremely long and there is no fast pass. If it is more than 20-25 minutes, I would skip it. The ride itself is fine, but the live element is really lame. The sound system in the ride vehicles is terrible.
Look carefully in the Tower of Terror (particularly in the queue area). Twilight Zone fans will find a lot of hidden references to the show.
The food at the '50s Prime Time cafe is good (like everywhere in DisneyWorld), but I found the "keep you elbows off the table" shtick to get annoying after a while. There are better restaurants at the park.
I missed "Walt Disney: One Man's Dream" when I was there, but I was subsequently informed it is one of the best parts of the park. It is not heavily promoted.
A new attraction, "Midway Mania," is scheduled to open this summer. There may be a "soft opening" as they get closer to the official launch date.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.