Dragonfall has been pretty good so far. Combat's pretty much the same and it still uses the same graphics style, but the writing feels a little bit better and having a set party allows the writers to have more interplay between more characters than if you're just hiring some random mooks from a list. Music's good, too, they stepped it up a little there. Also, I like the expanded hub and having more side-quests and things to do, definitely opens the game up a bit more than in the original campaign where it was more of an A->B affair with not much in-between.
Dragonfall is definitely worth coming back to Shadowrun for.