It's so well written. One thing for me that's especially striking is how subtle the difference is between failing or succeeding the Empathy check. It's not like the failure is a huge dramatic meltdown or something eye catching and bizarre - it's just that every little interaction or advice is Harry taking the wrong decision. You would barely register it as a failure if you saw it in isolation, but when you see it after having seen the success first you're left with the constant feeling of "oh, oh no" at every turn.
Great writing.