Instruct: Classify the given review as either positive or negative.
Query: big mistake

This was a horrible product, it was difficult to manuever and control. It did nothing but immediately cause my arms, shoulders and wrists to hurt. I felt absolutely nothing at all in the target area, my stomach. Not even a little. It was boring and pointless to bother.This machine was a waste of time to ship back and forth and I do not recomend it to anyone who wants to work their stomach muscles. Its a misleading product and very uncomfortable on the back also. It hurt my spine to bend in the way they said. I felt the machine digging into my spine. I was so focused on the pain and the pain in my arms I could not continue for more than 5 minutes at a time. Dont waste your time buying this product. Its expensive and not worth it.