Instruct: Classify Amazon reviews into positive or negative sentiment
Query: DISAPPOINTED

I've been using this swing for 2 months now. At first I liked it. But as my child gets older [almost 3mos] I am liking it less and less. The bar behind the head makes it more likely that you will bang their head puting them in and out of the swing. Also, I have never seen the difference between all the speeds and after changing batteries twice in the last month, the swing barely moves no mater what speed it is set to.