Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Doesn't fit any chairs!

I read tons of reviews raving about this seat, and since we have a small kitchen, I registered for it and received it. Well, it looked great BUT when we tried to place it on our kitchen chair, the base was bigger than our chair (the instructions say that the base must be completely on the chair's seat). We tried it on FOUR different chairs and it didn't fit on any of them! Apparently you must need an XLarge kitchen chair with a wide seat? Anyway, even if it was completely on the seat, any active and kicking child could easily cause it to tip, in my opinion.