It's nominally a science fiction show but i'd say that most of the episodes are about politics and diplomacy.
I can remember like one or two that dealt with sci fi stuff.
HOWEVER - the main cast are all pretty good. Travis does fall into the Voyager cardboard cutout mould a bit but Trip, Malcolm, Phlox, T'Pol. All good. And Scott Bakula is a fine actor
who plays the role very well. Imposing when he needs to be and also a model starship captain when he needs to be.