He thought very highly of it, and he wrote a whole commentary on it actually

I haven’t read all of it, but his agreement with it is significant.
As to your actual question of “Did he change anything?” In my traversals of the matter, yes he did. The big difference that jumps out at me is that Aristotle ties virtue to reason, whereas St. Aquinas has it stemming from love. Which seems to reasonably have a significant impact on how you go about actualizing the philosophy, and also ties into the notion that the fundamental Being, the Prime Mover, God, is love.
archive.org/details/AquinasCommentaryOnTheMetaphysics
God Bless,
cjb_914