Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Fun, Flimsy structure

My seven year old son with Down syndrome received this for Christmas. He absolutely loved it. He only weighs 45 lbs and will jump for hours on this. The safety screws fall out all the time and we are continuously putting them back in. Also the elastic cord frayed and broke by the end of February. We called the company for a replacement and after almost a month, they sent us a new cord. It broke after only a week. Sadly, I think we must retire this well-loved trampoline because it is just not safe or durable enough.