The music fits well, for what we've heard in these clips.
I liked that he didn't lean on Williams' music for the entire JURASSIC WORLD score. I think that will give us an indication of his scoring technique for STAR WARS. I'm expecting respectful nods to Williams, but an all-Giacchino sound. It only makes sense, as well, considering these are branched off from episodes one through seven (and, eventually, eight and nine).