Sci-Fi was the only TS that interested me in the Holywood park, so we went last trip. It was fine, just a little better than okay. The cars were a bit tight for us big people (I'm 6'5", 260). Mind you, Sci-Fi gets slagged a lot, but MY burger was tasty.
Only three of the Hollywood TS's really have a theme worth trying out, far as I'm concerned: The Derby, the Sci-Fi and the 50s. I always cut out the Derby cause it's monster expensive and doesn't get raves, and I cut out the 50s because too many people have said that their servers just weren't "into it."
Maybe TS really IS the way to go in this "two thirds of a day at best" park.