i wanted a lightweight inexpensive portable excerciser that was easy and quick to set up. i also wanted a demo to illustrate the excersises that would firm tone and reduce my waist and love handles. ive used the total core virtually every day for the past month doing between 100-200 crunches.i dont follow each excercise routine but choose what i want and what suits me! im delighted with the quality of the product and the speed and simple set up and start within seconds. i have a regular excercise routine of only 7mins daily and my waistband is firmer and flatter. Doing half crunches takes the strain off the back muscles normally associated with normal sit ups and this is a big plus. I AM REALLY PLEASED WITH THE RESULTS TO DATE and i feel motivated to continue and use the abdom excersiser. ps. enjoy the feelgood factor im a 62yr old male and getting fitter.