My oldest is 9 so I wanted to make sure I found a swing set that she could still enjoy until she outgrows it. I was surprised by how tall this one was. She is about 4' 6'' tall and can still enjoy this one - she can stand up on top floor! Like most swing sets, assembly is going to take some time. We did it over the course of 4 days with no real issues besides weather and not having the right drill bit on hand. All the pieces lined up almost perfectly every time so we didn't really have to fight with it too much. One word of advice, make sure to ALWAYS check the location of all pre-drilled holes - we had to redo a bunch of parts because we had it facing the wrong way... All in all, well worth the investment and, although timely, the assembly was pretty easy and, best of all, my kids love it!