The system arrived with a missing wheel. Spalding did send a replacement wheel one week later. I put the system together by myself in about three hours.The directions were not the best. I was very disappointed with the backboard. The polycarbonate is only an eight of an inch thick.My ten year old son has enjoyed shooting basketball with this system(I guess that is what matters most)but for me as an adult there is not enough stability with this system. I will be surprised if there is any longevity or endurance with this system. Plus the base leaks.Update: The durable polycarbonate backboard lasted about two years before it split or should I say opened a hole as big as the basketball.