Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Very Good product,,,,

The product was delivered quickly. The assembly was easy. Although I do not use it everyday, I have still noticed a difference in my core strength. I have had back problems for a number of years and thought it might be of some benefit. It is a great benefit. Speaking as a person who had a ruptured disk, take it slow, and you benefit from it. The negative item is the overall length for a tall person. The body length from the hips up could be a few inches longer. Don't think you are going to pound out a few hundred crunches and have AB's like a 6-pack. Take your time and pace yourself. You will enjoy the product and not burn out on it.