Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: MISSING PARTS!!!

I received this item today and as we were putting it together, we realized that we were missing an entire package of the base hardware. I'm sure that this hoop is great, but because of the inconvenience of having to put it together without specific items required for optimum performance --- I have to give this item 1 star. Mistakes happen: I'm completely aware of that - however, having an eight year old completely disappointed outweighs any understanding and patience for such negligence. An eight year old's birthday only happens once and now what he is going to remember is utter disappointment. It's really a shame.