This was definitely my least favorite episode in a long while, but it was still quite good. I enjoyed the case, but it was a bit too graphic for me. I don't mind a little bit of the horror, but not too much.
The Reid headache thing was not really exciting. It was emphasised way too much in this episode. I like Reid a lot, but this storyline didn't do anything for me.
This seaason has still been good, but I do not recommend this particular episode. The show surely will bounce back from this, because it is just awesome, and I am sure next week will be better than this one.