Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Great Fun - but not the best option for a true Punching Bag.

I was worried this would not hold up based on other reviews, but my three year old attacks this, lays on it, sits on it and bounces...and it is holding up great. The sand in the base will pool to one side and he won't bounce all the way back up sometimes - so maybe not the best option for a "punching bag" but if you give him a shake he stands back up and is still lots of fun. My one year old loves it too.