Instruct: Classify the given Amazon review as either positive or negative.
Query: Seems great at first, but just wait....

My glider is 4 months old, and at first I loved it. But after just these 4 months of use, the seat cushion is flattened to the base, and it creaks like a rusty hinge in the wind! I can hardly put my baby to sleep in it, and although it looks nice, my lower back aches if I sit in it for too long. This rapid deterioration of condition is very disappointing.