Instruct: Classify Amazon reviews into positive or negative sentiment
Query: What the heck?

I would really like to say that I enjoyed this set. Unfortunately, "The Complete Series" Was NOT complete, at least for me. In the Season 5 set, I recieved two copies of disk 4 and ZERO copies of disk 6. I had to return the item for a refund, and now I'm uncertain whether it's worth trying to purchase it again.