I read a lot of reviews and was hesitant as I'm a couple of months away from 70 and only weigh 114 lbs. A lot of reviews said it takes two to put it together and others returned because it was too hard to put together. I did it myself using the hook tool and sitting in the middle with my feet on the frame. I started at 11 am and was bouncing on it at 12:20 pm. Follow the directions, use the hook that comes with it, sit in the middle so you can lean back as you set the bungee and you can do the same. The bounce is perfect, not too stiff or loose, a perfect bounce. I love it!