The main storyline was good, although i knew it was a copycat and not the original killer it was still done very well and it was quite subtle.
I was glad to see that they kept up with Hotch's progress with his ears. It was quite revealing and a really good storyline. Seeing his face when he was talking to the doctor was soo cute as you could see how he was desperate to get back to work. It will be good to see what happens next with it. I hope they continue with this storyline.
p.s Spencer's hair was Awesome!