I purchased the 672 model and I was initially taken back by the size, strength, and weight of the system. I usually do most projects around the house by myself, but the installation of this beast required me to get some additional help from some adult friends. However, this is exactly why I love this hoop so much. It would take nothing short of a natural disaster to bring down this hoop. In addition to the strength of this hoop system, it also looks great. It really adds to the backyard. However the best part about it is that my kids can't get enough time playing on it. To see my kids playing outside on a basketball hoop instead of being inside playing video games, makes the purchase totally justifiable.