Everyone seems to think the lunch fare is fine. (Burgers, shakes, etc) Past that depends on how much you really like food.

Can't say I would ever order a dinner there again. We have given it enough chances to know that dinner is just not good there. Food out of a grocery freezer and nuked, is what I would compare their dinners to. I would say Applebee's or Chili's is far better than Sci Fi dinners.
I like the atmosphere. But I don't like having to read a menu over a small flashlight or barely being able to see what I am eating.
DH and I are always placed in the last seat of a car with a larger group in front of us. Once some ladies long hair was dangling just a few inches over DH's plate.

Literally the table depth is not enough for a dinner plate. The plate always hangs over the table. I feel like the person in front of me is on my face (like on an airplane) and my plate is ready to dump in my lap.
And due to the cramped feeling I would only eat at a picnic table.
Personally I would only eat there at lunch and as a last resort sit down. We generally eat elsewhere or in the Boardwalk area rather than DHS. (I certainly would not have qualms about Mama Melrose, Prime Time or Brown Derby. But past that....)