Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The Magic Swing - you must have this

We call this the magic swing, because it is amazing. Our son loves it. We started using it when he was a few months old and he is 8 months now and still loves it. The batteries last amazingly long, I think I've only replaced them 3 times in 7 months of use. The aquarium is entertaining and it comes with a tray to attach toys to. When our son was really little, the swing would stop any fussing, allowing us to eat dinner or just have a rest, and it would help us put him to sleep when he was occasionally too fussy to sleep any other way. Now he just likes to play in it, using the tray it comes with. I recommend this to all of my friends. It is a must for any parents.