Yes, the ab circle pro belongs to a long line of successful ab product line-ups and it was initially expected to do really well as it was riding on the name of its siblings. However, within a few months it was noticed that the sales were not picking up as they had expected. This unexpected drop in sales was later on identified as a marketing error that could have been rectified.
What the ab circle pro was designed to do was provide adequate workout and resistance training to the user and using a combination of the two it was supposed to reduce fat content of the body and slim down the stomach. It was never supposed to bring out abs in men as that requires a lot of energy and time. The ab circle pro was made for women but somewhere along the way, the marketing part took a hit and it was marketed as a male specific product instead of trying to woe women users.