Not to be critical but.....That pulley device looks way too small to handle any heavy load that going to work the abs like they should be worked. Is that a cord or light cable used? Ten year warranty or not, that ab bench looks poorly designed. As is the way the plate(s) is loaded on the end of the cord/rope/cable.
The abs themselves are a very powerfull short range muscle group. When a challenging weight load is used, the knee's or ankles may need support else the legs/hips raise up. There is no support or brace built into the ab bench for the lower body (knee's, legs or ankles). You could lay a 45 lbs plate (or BB/DB) on the lap, but if your paying that much for the bench I would think you would want the better designed ab bench for the bucks invested.
By the looks of it, the ab's are not pre-stretch as the add suggest, from the starting position. And will that strap, held the way in the photo, dig into the neck/traps if heavier weight is actually used. If you belong to a gym than you could get very positive results by using a lat machine (or cable) and preform a simlar movement with better results. That is what that ab bench is trying to copy. Make up you own mind though. If it suits you training need than do what you think best for you. Good Luck.
