At times I find the narration intrusive. One example is when the slug crawls out of Ed's eye and if you go about trying to squish it, you get "But it's too precious, isn't it?" I'm fine with it being a struggle to squish it, but the narration not only doesn't add anything to the scene for me, it detracts from it. Like Palpatine egging Luke to continue doing what he was fixing to do anyway, which did nothing but make Luke stop and reconsider.
