Instruct: Classify an Amazon review into positive or negative sentiment.
Query: dissapointed

I purchased these with high hopes based on reviews but was greatly disappointed. First, the latch arrived with significant rust on it. Not sure if that affects anything other than asthetics but that sucks to see rust on a new item.As for functionality, I found that the straps would cause my body to swing during reverse crunches, especially if my legs are fully extended. I guess if you install it up against a wall it would solve that problem. However, I installed a pull-up bar in the garage away from the wall and I was hoping to use it with these ab straps. Now I only do pull-ups on the bar because the straps aren't worth the workout. Not anymore effective than other situp methods.