We didn't care for the Sci-Fi at all, just our opinion.
Food was okay, nothing great.
We had 3 in our party, and 2 of us sat in the frontseat of the car and 1 in the back. So we couldn't talk (even though they have a movie), couldn't share food, and person in backseat had to look at the back of our heads.
The BD is great, but be prepared its pricey, its in the league of WDW's upper scale restaurants like CG, AP, etc. We did the DB w/ the Fantasmic Package -- had great food, service. I highly recommend it.
PS. If BD is too pricey, try the PT 50's.