The unit is not shipped in final form it will take him up there just has to fix three caches in plastics and foams to ask the knees and arms over this one, as well as the counter and the bar each of which maintains fixed with two bolts, everything is explained in the instructions and tools are provided. It takes 5 minutes for assembly. The use of this device is made on 4 position of the less aggressive to more aggressive: the larger the angle is tight with his knees up over the top of the machine will be difficult. I started to position "hard" and I could do 50 pushups in two time in a week, the first day I ever felt my abdominal work, this machine is so effective, however I think the strength of all is reviewing with my 90 kilos on the "extreme" position, the effort exerted on the device is more intense and this one moves a little too much for my taste. The LCD meter meanwhile is not indispensable to me it seems, but it still allows to know how much traction we did have and how many calories were consumed. Finally, the storage system is practical it allows the unit to comply fully and thus to store without taking up space. 4 stars for its efficiency, a point less for the LCD which could have been working to remove and see the strength of this one on the extreme position.