Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Hours of entertainment!

My son loves this gym, he's now 4 months old and has been amazed by it ever since we brought it home. He will smile and giggle and loves playing in the gym, either alone or with us helping him play with all the cool stuff. Careful, you'll find yourself singing along to the music in no time.Best thing we've bought so far...